396156474 has 96 divisors (see below), whose sum is σ = 1084440960. Its totient is φ = 106517376.

The previous prime is 396156451. The next prime is 396156487. The reversal of 396156474 is 474651693.

It is a super-3 number, since 3×396156474³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40579 + ... + 49385.

It is an arithmetic number, because the mean of its divisors is an integer number (11296260).

Almost surely, 2^396156474 is an apocalyptic number.

396156474 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 396156474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (542220480).

396156474 is an abundant number, since it is smaller than the sum of its proper divisors (688284486).

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

396156474 is a wasteful number, since it uses less digits than its factorization.

396156474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8849 (or 8836 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 396156474 is about 19903.6799110114. The cubic root of 396156474 is about 734.4387552170.

The spelling of 396156474 in words is "three hundred ninety-six million, one hundred fifty-six thousand, four hundred seventy-four".