40868668 has 6 divisors (see below), whose sum is σ = 71520176. Its totient is φ = 20434332.

The previous prime is 40868657. The next prime is 40868687. The reversal of 40868668 is 86686804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5108580 + ... + 5108587.

Almost surely, 2^40868668 is an apocalyptic number.

It is an amenable number.

40868668 is a deficient number, since it is larger than the sum of its proper divisors (30651508).

40868668 is a wasteful number, since it uses less digits than its factorization.

40868668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10217171 (or 10217169 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 46.

The square root of 40868668 is about 6392.8607055058. The cubic root of 40868668 is about 344.4531503253.

The spelling of 40868668 in words is "forty million, eight hundred sixty-eight thousand, six hundred sixty-eight".