383398732864 has 63 divisors (see below), whose sum is σ = 885100274373. Its totient is φ = 164298882048.

The previous prime is 383398732853. The next prime is 383398732877. The reversal of 383398732864 is 468237893383.

The square root of 383398732864 is 619192.

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

It can be written as a sum of positive squares in only one way, i.e., 71802561600 + 311596171264 = 267960^2 + 558208^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a junction number, because it is equal to n+sod(n) for n = 383398732796 and 383398732805.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 34669224 + ... + 34680280.

Almost surely, 2^383398732864 is an apocalyptic number.

383398732864 is the 619192-nd square number.

It is an amenable number.

383398732864 is an abundant number, since it is smaller than the sum of its proper divisors (501701541509).

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

383398732864 is an frugal number, since it uses more digits than its factorization.

383398732864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22140 (or 11066 counting only the distinct ones).

The product of its digits is 125411328, while the sum is 64.

Multiplying 383398732864 by its sum of digits (64), we get a square (24537518903296 = 4953536²).

383398732864 divided by its sum of digits (64) gives a square (5990605201 = 77399²).

The spelling of 383398732864 in words is "three hundred eighty-three billion, three hundred ninety-eight million, seven hundred thirty-two thousand, eight hundred sixty-four".