40087872 has 280 divisors, whose sum is σ = 140147040. Its totient is φ = 11197440.

The previous prime is 40087843. The next prime is 40087897. The reversal of 40087872 is 27878004.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1083438 + ... + 1083474.

Almost surely, 2^40087872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40087872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70073520).

40087872 is an abundant number, since it is smaller than the sum of its proper divisors (100059168).

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

40087872 is a wasteful number, since it uses less digits than its factorization.

40087872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 40087872 is about 6331.4984008527. The cubic root of 40087872 is about 342.2454378534.

The spelling of 40087872 in words is "forty million, eighty-seven thousand, eight hundred seventy-two".