40325128 has 16 divisors (see below), whose sum is σ = 76163580. Its totient is φ = 20014848.

The previous prime is 40325123. The next prime is 40325137. The reversal of 40325128 is 82152304.

It can be written as a sum of positive squares in 2 ways, for example, as 38415204 + 1909924 = 6198^2 + 1382^2 .

It is a super-2 number, since 2×40325128² = 3252231896432768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40325123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17301 + ... + 19492.

Almost surely, 2^40325128 is an apocalyptic number.

It is an amenable number.

40325128 is a deficient number, since it is larger than the sum of its proper divisors (35838452).

40325128 is a wasteful number, since it uses less digits than its factorization.

40325128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36936 (or 36932 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 40325128 is about 6350.2069257623. The cubic root of 40325128 is about 342.9192918422.

The spelling of 40325128 in words is "forty million, three hundred twenty-five thousand, one hundred twenty-eight".