40087660 has 12 divisors (see below), whose sum is σ = 84184128. Its totient is φ = 16035056.

The previous prime is 40087639. The next prime is 40087669. The reversal of 40087660 is 6678004.

It is not an unprimeable number, because it can be changed into a prime (40087669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002172 + ... + 1002211.

It is an arithmetic number, because the mean of its divisors is an integer number (7015344).

Almost surely, 2^40087660 is an apocalyptic number.

It is an amenable number.

40087660 is an abundant number, since it is smaller than the sum of its proper divisors (44096468).

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

40087660 is a wasteful number, since it uses less digits than its factorization.

40087660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004392 (or 2004390 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 40087660 is about 6331.4816591379. The cubic root of 40087660 is about 342.2448345440.

The spelling of 40087660 in words is "forty million, eighty-seven thousand, six hundred sixty".