1142412040 has 128 divisors (see below), whose sum is σ = 3249227520. Its totient is φ = 351129600.

The previous prime is 1142411983. The next prime is 1142412043. The reversal of 1142412040 is 402142411.

It is a junction number, because it is equal to n+sod(n) for n = 1142411999 and 1142412017.

It is not an unprimeable number, because it can be changed into a prime (1142412043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 222300 + ... + 227380.

It is an arithmetic number, because the mean of its divisors is an integer number (25384590).

Almost surely, 2^1142412040 is an apocalyptic number.

1142412040 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 1142412040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1624613760).

1142412040 is an abundant number, since it is smaller than the sum of its proper divisors (2106815480).

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

1142412040 is a wasteful number, since it uses less digits than its factorization.

1142412040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5183 (or 5179 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1142412040 is about 33799.5863880019. The cubic root of 1142412040 is about 1045.3801689059.

Adding to 1142412040 its reverse (402142411), we get a palindrome (1544554451).

It can be divided in two parts, 114241 and 2040, that added together give a square (116281 = 341²).

The spelling of 1142412040 in words is "one billion, one hundred forty-two million, four hundred twelve thousand, forty".