40858625 has 8 divisors (see below), whose sum is σ = 50991720. Its totient is φ = 32686800.

The previous prime is 40858579. The next prime is 40858627. The reversal of 40858625 is 52685804.

It can be written as a sum of positive squares in 4 ways, for example, as 961 + 40857664 = 31^2 + 6392^2 .

It is not a de Polignac number, because 40858625 - 2¹⁰ = 40857601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40858627) 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, 163310 + ... + 163559.

It is an arithmetic number, because the mean of its divisors is an integer number (6373965).

Almost surely, 2^40858625 is an apocalyptic number.

It is an amenable number.

40858625 is a deficient number, since it is larger than the sum of its proper divisors (10133095).

40858625 is an equidigital number, since it uses as much as digits as its factorization.

40858625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326884 (or 326874 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 40858625 is about 6392.0751716481. The cubic root of 40858625 is about 344.4249328948.

The spelling of 40858625 in words is "forty million, eight hundred fifty-eight thousand, six hundred twenty-five".