1142344560 has 320 divisors, whose sum is σ = 4198017024. Its totient is φ = 251596800.

The previous prime is 1142344547. The next prime is 1142344571. The reversal of 1142344560 is 654432411.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7276002 + ... + 7276158.

Almost surely, 2^1142344560 is an apocalyptic number.

1142344560 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 1142344560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2099008512).

1142344560 is an abundant number, since it is smaller than the sum of its proper divisors (3055672464).

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

1142344560 is a wasteful number, since it uses less digits than its factorization.

1142344560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1142344560 is about 33798.5881361929. The cubic root of 1142344560 is about 1045.3595856603.

Adding to 1142344560 its reverse (654432411), we get a palindrome (1796776971).

The spelling of 1142344560 in words is "one billion, one hundred forty-two million, three hundred forty-four thousand, five hundred sixty".