40217136 has 40 divisors (see below), whose sum is σ = 104380224. Its totient is φ = 13343040.

The previous prime is 40217123. The next prime is 40217143. The reversal of 40217136 is 63171204.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9051 + ... + 12741.

Almost surely, 2^40217136 is an apocalyptic number.

It is an amenable number.

40217136 is an abundant number, since it is smaller than the sum of its proper divisors (64163088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40217136 is a wasteful number, since it uses less digits than its factorization.

40217136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3929 (or 3923 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 40217136 is about 6341.6981952786. The cubic root of 40217136 is about 342.6129018451.

The spelling of 40217136 in words is "forty million, two hundred seventeen thousand, one hundred thirty-six".