396524416 has 48 divisors (see below), whose sum is σ = 826548840. Its totient is φ = 189125376.

The previous prime is 396524351. The next prime is 396524419. The reversal of 396524416 is 614425693.

It is a super-2 number, since 2×396524416² = 314463224968282112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396524419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1080265 + ... + 1080631.

Almost surely, 2^396524416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396524416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413274420).

396524416 is an abundant number, since it is smaller than the sum of its proper divisors (430024424).

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

396524416 is an frugal number, since it uses more digits than its factorization.

396524416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771 (or 392 counting only the distinct ones).

The product of its digits is 155520, while the sum is 40.

The square root of 396524416 is about 19912.9208304558. The cubic root of 396524416 is about 734.6660620715. Note that the first 3 decimals are identical.

The spelling of 396524416 in words is "three hundred ninety-six million, five hundred twenty-four thousand, four hundred sixteen".