40215056 has 20 divisors (see below), whose sum is σ = 89047872. Its totient is φ = 17234976.

The previous prime is 40215037. The next prime is 40215073. The reversal of 40215056 is 65051204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179420 + ... + 179643.

Almost surely, 2^40215056 is an apocalyptic number.

It is an amenable number.

40215056 is an abundant number, since it is smaller than the sum of its proper divisors (48832816).

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

40215056 is a wasteful number, since it uses less digits than its factorization.

40215056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359078 (or 359072 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 40215056 is about 6341.5341992297. The cubic root of 40215056 is about 342.6069951828.

The spelling of 40215056 in words is "forty million, two hundred fifteen thousand, fifty-six".