396321492 has 48 divisors (see below), whose sum is σ = 1076810112. Its totient is φ = 111096960.

The previous prime is 396321451. The next prime is 396321509. The reversal of 396321492 is 294123693.

It is a super-2 number, since 2×396321492² = 314141450042212128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 396321492.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40059 + ... + 48962.

It is an arithmetic number, because the mean of its divisors is an integer number (22433544).

Almost surely, 2^396321492 is an apocalyptic number.

It is an amenable number.

396321492 is an abundant number, since it is smaller than the sum of its proper divisors (680488620).

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

396321492 is a wasteful number, since it uses less digits than its factorization.

396321492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89088 (or 89086 counting only the distinct ones).

The product of its digits is 69984, while the sum is 39.

The square root of 396321492 is about 19907.8248937447. The cubic root of 396321492 is about 734.5407172769.

The spelling of 396321492 in words is "three hundred ninety-six million, three hundred twenty-one thousand, four hundred ninety-two".