40208056 has 32 divisors (see below), whose sum is σ = 86567040. Its totient is φ = 17150688.

The previous prime is 40208041. The next prime is 40208057. The reversal of 40208056 is 65080204.

It is a self number, because there is not a number n which added to its sum of digits gives 40208056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40208057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11131 + ... + 14293.

It is an arithmetic number, because the mean of its divisors is an integer number (2705220).

Almost surely, 2^40208056 is an apocalyptic number.

It is an amenable number.

40208056 is an abundant number, since it is smaller than the sum of its proper divisors (46358984).

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

40208056 is a wasteful number, since it uses less digits than its factorization.

40208056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3403 (or 3399 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 40208056 is about 6340.9822582941. The cubic root of 40208056 is about 342.5871154962.

The spelling of 40208056 in words is "forty million, two hundred eight thousand, fifty-six".