40125656 has 32 divisors (see below), whose sum is σ = 78295680. Its totient is φ = 19257600.

The previous prime is 40125653. The next prime is 40125671. The reversal of 40125656 is 65652104.

It is a super-2 number, since 2×40125656² = 3220136538860672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40125653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33386 + ... + 34566.

It is an arithmetic number, because the mean of its divisors is an integer number (2446740).

Almost surely, 2^40125656 is an apocalyptic number.

It is an amenable number.

40125656 is a deficient number, since it is larger than the sum of its proper divisors (38170024).

40125656 is a wasteful number, since it uses less digits than its factorization.

40125656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355 (or 1351 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 40125656 is about 6334.4815099580. The cubic root of 40125656 is about 342.3529295573.

The spelling of 40125656 in words is "forty million, one hundred twenty-five thousand, six hundred fifty-six".