40436625 has 32 divisors (see below), whose sum is σ = 71255808. Its totient is φ = 20294400.

The previous prime is 40436621. The next prime is 40436633. The reversal of 40436625 is 52663404.

It is not a de Polignac number, because 40436625 - 2² = 40436621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40436592 and 40436601.

It is not an unprimeable number, because it can be changed into a prime (40436621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3204 + ... + 9546.

It is an arithmetic number, because the mean of its divisors is an integer number (2226744).

Almost surely, 2^40436625 is an apocalyptic number.

It is an amenable number.

40436625 is a deficient number, since it is larger than the sum of its proper divisors (30819183).

40436625 is a wasteful number, since it uses less digits than its factorization.

40436625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6378 (or 6368 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 40436625 is about 6358.9798710170. The cubic root of 40436625 is about 343.2350526708.

The spelling of 40436625 in words is "forty million, four hundred thirty-six thousand, six hundred twenty-five".