1397908324 has 12 divisors (see below), whose sum is σ = 2455860204. Its totient is φ = 696233984.

The previous prime is 1397908313. The next prime is 1397908333. The reversal of 1397908324 is 4238097931.

It can be written as a sum of positive squares in 2 ways, for example, as 931348324 + 466560000 = 30518^2 + 21600^2 .

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, 678889 + ... + 680944.

It is an arithmetic number, because the mean of its divisors is an integer number (204655017).

Almost surely, 2^1397908324 is an apocalyptic number.

It is an amenable number.

1397908324 is a deficient number, since it is larger than the sum of its proper divisors (1057951880).

1397908324 is a wasteful number, since it uses less digits than its factorization.

1397908324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360094 (or 1360092 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 1397908324 is about 37388.6122235100. The cubic root of 1397908324 is about 1118.1315370553.

The spelling of 1397908324 in words is "one billion, three hundred ninety-seven million, nine hundred eight thousand, three hundred twenty-four".