1396317924 has 36 divisors (see below), whose sum is σ = 3604683264. Its totient is φ = 455535792.

The previous prime is 1396317869. The next prime is 1396317929. The reversal of 1396317924 is 4297136931.

1396317924 is a `hidden beast` number, since 1 + 3 + 9 + 631 + 7 + 9 + 2 + 4 = 666.

1396317924 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1396317924.

It is not an unprimeable number, because it can be changed into a prime (1396317929) 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, 410932 + ... + 414315.

Almost surely, 2^1396317924 is an apocalyptic number.

It is an amenable number.

1396317924 is an abundant number, since it is smaller than the sum of its proper divisors (2208365340).

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

1396317924 is a wasteful number, since it uses less digits than its factorization.

1396317924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825304 (or 825299 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 1396317924 is about 37367.3376627236. The cubic root of 1396317924 is about 1117.7073434764.

The spelling of 1396317924 in words is "one billion, three hundred ninety-six million, three hundred seventeen thousand, nine hundred twenty-four".