39400668 has 30 divisors (see below), whose sum is σ = 103001976. Its totient is φ = 13133448.

The previous prime is 39400667. The next prime is 39400703. The reversal of 39400668 is 86600493.

39400668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39400667) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 60480 + ... + 61127.

Almost surely, 2^39400668 is an apocalyptic number.

It is an amenable number.

39400668 is an abundant number, since it is smaller than the sum of its proper divisors (63601308).

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

39400668 is a wasteful number, since it uses less digits than its factorization.

39400668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121623 (or 121612 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 39400668 is about 6276.9951409890. The cubic root of 39400668 is about 340.2785145808.

The spelling of 39400668 in words is "thirty-nine million, four hundred thousand, six hundred sixty-eight".