396763644 has 12 divisors (see below), whose sum is σ = 925781864. Its totient is φ = 132254544.

The previous prime is 396763589. The next prime is 396763651. The reversal of 396763644 is 446367693.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 396763593 and 396763602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16531807 + ... + 16531830.

Almost surely, 2^396763644 is an apocalyptic number.

It is an amenable number.

396763644 is an abundant number, since it is smaller than the sum of its proper divisors (529018220).

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

396763644 is a wasteful number, since it uses less digits than its factorization.

396763644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33063644 (or 33063642 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 48.

The square root of 396763644 is about 19918.9267783182. The cubic root of 396763644 is about 734.8137766912.

The spelling of 396763644 in words is "three hundred ninety-six million, seven hundred sixty-three thousand, six hundred forty-four".