1140656 has 20 divisors (see below), whose sum is σ = 2411304. Its totient is φ = 518400.

The previous prime is 1140637. The next prime is 1140677. The reversal of 1140656 is 6560411.

It is a super-2 number, since 2×1140656² = 2602192220672, which contains 22 as substring.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3065 + ... + 3416.

2^1140656 is an apocalyptic number.

1140656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1140656 is an abundant number, since it is smaller than the sum of its proper divisors (1270648).

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

1140656 is a wasteful number, since it uses less digits than its factorization.

1140656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6500 (or 6494 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1140656 is about 1068.0149811683. The cubic root of 1140656 is about 104.4844264545.

The spelling of 1140656 in words is "one million, one hundred forty thousand, six hundred fifty-six".