396474534 has 64 divisors (see below), whose sum is σ = 914284800. Its totient is φ = 127262016.

The previous prime is 396474523. The next prime is 396474571. The reversal of 396474534 is 435474693.

It is a super-2 number, since 2×396474534² = 314384112221034312, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 396474534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168337 + ... + 170675.

It is an arithmetic number, because the mean of its divisors is an integer number (14285700).

Almost surely, 2^396474534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396474534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457142400).

396474534 is an abundant number, since it is smaller than the sum of its proper divisors (517810266).

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

396474534 is a wasteful number, since it uses less digits than its factorization.

396474534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466 (or 2460 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 45.

The square root of 396474534 is about 19911.6682877151. The cubic root of 396474534 is about 734.6352542592.

The spelling of 396474534 in words is "three hundred ninety-six million, four hundred seventy-four thousand, five hundred thirty-four".