40087628 has 24 divisors (see below), whose sum is σ = 82941600. Its totient is φ = 16587648.

The previous prime is 40087603. The next prime is 40087637. The reversal of 40087628 is 82678004.

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, 23873 + ... + 25496.

It is an arithmetic number, because the mean of its divisors is an integer number (3455900).

Almost surely, 2^40087628 is an apocalyptic number.

It is an amenable number.

40087628 is an abundant number, since it is smaller than the sum of its proper divisors (42853972).

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

40087628 is a wasteful number, since it uses less digits than its factorization.

40087628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49409 (or 49407 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 40087628 is about 6331.4791320828. The cubic root of 40087628 is about 342.2447434783.

The spelling of 40087628 in words is "forty million, eighty-seven thousand, six hundred twenty-eight".