40672668 has 24 divisors (see below), whose sum is σ = 97111168. Its totient is φ = 13242096.

The previous prime is 40672661. The next prime is 40672669. The reversal of 40672668 is 86627604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40672661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38896 + ... + 39927.

Almost surely, 2^40672668 is an apocalyptic number.

It is an amenable number.

40672668 is an abundant number, since it is smaller than the sum of its proper divisors (56438500).

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

40672668 is a wasteful number, since it uses less digits than its factorization.

40672668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78873 (or 78871 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 40672668 is about 6377.5126812888. The cubic root of 40672668 is about 343.9016191535.

The spelling of 40672668 in words is "forty million, six hundred seventy-two thousand, six hundred sixty-eight".