40208872 has 32 divisors (see below), whose sum is σ = 82529280. Its totient is φ = 18213760.

The previous prime is 40208863. The next prime is 40208873. The reversal of 40208872 is 27880204.

It is not an unprimeable number, because it can be changed into a prime (40208873) 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, 33108 + ... + 34300.

It is an arithmetic number, because the mean of its divisors is an integer number (2579040).

Almost surely, 2^40208872 is an apocalyptic number.

It is an amenable number.

40208872 is an abundant number, since it is smaller than the sum of its proper divisors (42320408).

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

40208872 is a wasteful number, since it uses less digits than its factorization.

40208872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593 (or 1589 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 40208872 is about 6341.0466013112. The cubic root of 40208872 is about 342.5894330185.

The spelling of 40208872 in words is "forty million, two hundred eight thousand, eight hundred seventy-two".