396047912 has 48 divisors (see below), whose sum is σ = 849585660. Its totient is φ = 172025856.

The previous prime is 396047891. The next prime is 396047917. The reversal of 396047912 is 219740693.

It can be written as a sum of positive squares in 6 ways, for example, as 265494436 + 130553476 = 16294^2 + 11426^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 396047912.

It is not an unprimeable number, because it can be changed into a prime (396047917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23468 + ... + 36644.

Almost surely, 2^396047912 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 396047912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (424792830).

396047912 is an abundant number, since it is smaller than the sum of its proper divisors (453537748).

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

396047912 is a wasteful number, since it uses less digits than its factorization.

396047912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13230 (or 13209 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 396047912 is about 19900.9525400168. The cubic root of 396047912 is about 734.3716610007.

The spelling of 396047912 in words is "three hundred ninety-six million, forty-seven thousand, nine hundred twelve".