396234998784 has 297 divisors, whose sum is σ = 1172915297463. Its totient is φ = 128835293184.

The previous prime is 396234998779. The next prime is 396234998791. The reversal of 396234998784 is 487899432693.

The square root of 396234998784 is 629472.

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

396234998784 is a `hidden beast` number, since 3 + 9 + 62 + 3 + 499 + 8 + 78 + 4 = 666.

It is a super-2 number, since 2×396234998784² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4773915607 + ... + 4773915689.

Almost surely, 2^396234998784 is an apocalyptic number.

396234998784 is the 629472-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396234998784

396234998784 is an abundant number, since it is smaller than the sum of its proper divisors (776680298679).

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

396234998784 is an frugal number, since it uses more digits than its factorization.

396234998784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 167 counting only the distinct ones).

The product of its digits is 564350976, while the sum is 72.

The spelling of 396234998784 in words is "three hundred ninety-six billion, two hundred thirty-four million, nine hundred ninety-eight thousand, seven hundred eighty-four".