1140572736 has 168 divisors, whose sum is σ = 3482949600. Its totient is φ = 355829760.

The previous prime is 1140572729. The next prime is 1140572749. The reversal of 1140572736 is 6372750411.

It is a happy number.

1140572736 is a `hidden beast` number, since 1 + 14 + 0 + 572 + 73 + 6 = 666.

It is a super-2 number, since 2×1140572736² = 2601812332213051392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1140572736.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 973431 + ... + 974601.

Almost surely, 2^1140572736 is an apocalyptic number.

1140572736 is a gapful number since it is divisible by the number (16) 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 1140572736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1741474800).

1140572736 is an abundant number, since it is smaller than the sum of its proper divisors (2342376864).

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

1140572736 is a wasteful number, since it uses less digits than its factorization.

1140572736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297 (or 1284 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 1140572736 is about 33772.3664554322. The cubic root of 1140572736 is about 1044.8188405696.

The spelling of 1140572736 in words is "one billion, one hundred forty million, five hundred seventy-two thousand, seven hundred thirty-six".