40628625 has 16 divisors (see below), whose sum is σ = 67606656. Its totient is φ = 21668400.

The previous prime is 40628611. The next prime is 40628647. The reversal of 40628625 is 52682604.

It is not a de Polignac number, because 40628625 - 2⁶ = 40628561 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53797 + ... + 54546.

It is an arithmetic number, because the mean of its divisors is an integer number (4225416).

Almost surely, 2^40628625 is an apocalyptic number.

It is an amenable number.

40628625 is a deficient number, since it is larger than the sum of its proper divisors (26978031).

40628625 is a wasteful number, since it uses less digits than its factorization.

40628625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108361 (or 108351 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 40628625 is about 6374.0587540436. The cubic root of 40628625 is about 343.7774413355. Note that the first 3 decimals are identical.

The spelling of 40628625 in words is "forty million, six hundred twenty-eight thousand, six hundred twenty-five".