40209875 has 8 divisors (see below), whose sum is σ = 50182080. Its totient is φ = 32167800.

The previous prime is 40209853. The next prime is 40209887. The reversal of 40209875 is 57890204.

It is a happy number.

It is not a de Polignac number, because 40209875 - 2¹² = 40205779 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160715 + ... + 160964.

It is an arithmetic number, because the mean of its divisors is an integer number (6272760).

Almost surely, 2^40209875 is an apocalyptic number.

40209875 is a deficient number, since it is larger than the sum of its proper divisors (9972205).

40209875 is an equidigital number, since it uses as much as digits as its factorization.

40209875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321694 (or 321684 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 40209875 is about 6341.1256887086. The cubic root of 40209875 is about 342.5922815966.

The spelling of 40209875 in words is "forty million, two hundred nine thousand, eight hundred seventy-five".