396388792 has 32 divisors (see below), whose sum is σ = 800553600. Its totient is φ = 183393504.

The previous prime is 396388787. The next prime is 396388793. The reversal of 396388792 is 297883693.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396388793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23788 + ... + 36859.

It is an arithmetic number, because the mean of its divisors is an integer number (25017300).

Almost surely, 2^396388792 is an apocalyptic number.

It is an amenable number.

396388792 is an abundant number, since it is smaller than the sum of its proper divisors (404164808).

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

396388792 is a wasteful number, since it uses less digits than its factorization.

396388792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60715 (or 60711 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 55.

The square root of 396388792 is about 19909.5151121267. The cubic root of 396388792 is about 734.5822927768.

The spelling of 396388792 in words is "three hundred ninety-six million, three hundred eighty-eight thousand, seven hundred ninety-two".