40713666 has 32 divisors (see below), whose sum is σ = 93339648. Its totient is φ = 11597520.

The previous prime is 40713661. The next prime is 40713667. The reversal of 40713666 is 66631704.

It is not an unprimeable number, because it can be changed into a prime (40713661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14821 + ... + 17351.

It is an arithmetic number, because the mean of its divisors is an integer number (2916864).

Almost surely, 2^40713666 is an apocalyptic number.

40713666 is an abundant number, since it is smaller than the sum of its proper divisors (52625982).

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

40713666 is a wasteful number, since it uses less digits than its factorization.

40713666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2926.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 40713666 is about 6380.7261342264. The cubic root of 40713666 is about 344.0171311551.

The spelling of 40713666 in words is "forty million, seven hundred thirteen thousand, six hundred sixty-six".