40787660 has 12 divisors (see below), whose sum is σ = 85654128. Its totient is φ = 16315056.

The previous prime is 40787647. The next prime is 40787683. The reversal of 40787660 is 6678704.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1019672 + ... + 1019711.

It is an arithmetic number, because the mean of its divisors is an integer number (7137844).

Almost surely, 2^40787660 is an apocalyptic number.

It is an amenable number.

40787660 is an abundant number, since it is smaller than the sum of its proper divisors (44866468).

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

40787660 is a wasteful number, since it uses less digits than its factorization.

40787660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039392 (or 2039390 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 40787660 is about 6386.5217450503. The cubic root of 40787660 is about 344.2254133749.

The spelling of 40787660 in words is "forty million, seven hundred eighty-seven thousand, six hundred sixty".