1142334240 has 96 divisors (see below), whose sum is σ = 3634134336. Its totient is φ = 301593600.

The previous prime is 1142334239. The next prime is 1142334241. The reversal of 1142334240 is 424332411.

It is an interprime number because it is at equal distance from previous prime (1142334239) and next prime (1142334241).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1142334240.

It is not an unprimeable number, because it can be changed into a prime (1142334241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36699 + ... + 60261.

It is an arithmetic number, because the mean of its divisors is an integer number (37855566).

Almost surely, 2^1142334240 is an apocalyptic number.

1142334240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142334240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1817067168).

1142334240 is an abundant number, since it is smaller than the sum of its proper divisors (2491800096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1142334240 is a wasteful number, since it uses less digits than its factorization.

1142334240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23682 (or 23674 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1142334240 is about 33798.4354667490. The cubic root of 1142334240 is about 1045.3564377066.

Adding to 1142334240 its reverse (424332411), we get a palindrome (1566666651).

The spelling of 1142334240 in words is "one billion, one hundred forty-two million, three hundred thirty-four thousand, two hundred forty".