40523605 has 16 divisors (see below), whose sum is σ = 49638528. Its totient is φ = 31752000.

The previous prime is 40523579. The next prime is 40523629. The reversal of 40523605 is 50632504.

It is not a de Polignac number, because 40523605 - 2⁵ = 40523573 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40523605.

It is a congruent 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, 74635 + ... + 75175.

It is an arithmetic number, because the mean of its divisors is an integer number (3102408).

Almost surely, 2^40523605 is an apocalyptic number.

It is an amenable number.

40523605 is a deficient number, since it is larger than the sum of its proper divisors (9114923).

40523605 is a wasteful number, since it uses less digits than its factorization.

40523605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 40523605 is about 6365.8153444787. The cubic root of 40523605 is about 343.4809782765.

The spelling of 40523605 in words is "forty million, five hundred twenty-three thousand, six hundred five".