39690464 has 24 divisors (see below), whose sum is σ = 85245048. Its totient is φ = 18040960.

The previous prime is 39690463. The next prime is 39690493. The reversal of 39690464 is 46409693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39690463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56027 + ... + 56730.

It is an arithmetic number, because the mean of its divisors is an integer number (3551877).

Almost surely, 2^39690464 is an apocalyptic number.

It is an amenable number.

39690464 is an abundant number, since it is smaller than the sum of its proper divisors (45554584).

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

39690464 is a wasteful number, since it uses less digits than its factorization.

39690464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112778 (or 112770 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 39690464 is about 6300.0368252892. The cubic root of 39690464 is about 341.1107387951.

The spelling of 39690464 in words is "thirty-nine million, six hundred ninety thousand, four hundred sixty-four".