40087770 has 32 divisors (see below), whose sum is σ = 96394752. Its totient is φ = 10669632.

The previous prime is 40087759. The next prime is 40087783. The reversal of 40087770 is 7778004.

40087770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21079 + ... + 22901.

It is an arithmetic number, because the mean of its divisors is an integer number (3012336).

Almost surely, 2^40087770 is an apocalyptic number.

40087770 is an abundant number, since it is smaller than the sum of its proper divisors (56306982).

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

40087770 is a wasteful number, since it uses less digits than its factorization.

40087770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2566.

The product of its (nonzero) digits is 10976, while the sum is 33.

The square root of 40087770 is about 6331.4903458822. The cubic root of 40087770 is about 342.2451475822.

The spelling of 40087770 in words is "forty million, eighty-seven thousand, seven hundred seventy".