403688464 has 15 divisors (see below), whose sum is σ = 782302143. Its totient is φ = 201804048.

The previous prime is 403688449. The next prime is 403688471. The reversal of 403688464 is 464886304.

The square root of 403688464 is 20092.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 403688464.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 77857 + ... + 82879.

Almost surely, 2^403688464 is an apocalyptic number.

403688464 is the 20092-nd square number.

It is an amenable number.

403688464 is a deficient number, since it is larger than the sum of its proper divisors (378613679).

403688464 is an frugal number, since it uses more digits than its factorization.

403688464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10054 (or 5025 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 43.

The cubic root of 403688464 is about 739.0641102659.

The spelling of 403688464 in words is "four hundred three million, six hundred eighty-eight thousand, four hundred sixty-four".