1397292456 has 64 divisors (see below), whose sum is σ = 4029626880. Its totient is φ = 395490240.

The previous prime is 1397292427. The next prime is 1397292497. The reversal of 1397292456 is 6542927931.

1397292456 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20890 + ... + 56841.

It is an arithmetic number, because the mean of its divisors is an integer number (62962920).

Almost surely, 2^1397292456 is an apocalyptic number.

It is an amenable number.

1397292456 is an abundant number, since it is smaller than the sum of its proper divisors (2632334424).

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

1397292456 is a wasteful number, since it uses less digits than its factorization.

1397292456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77854 (or 77850 counting only the distinct ones).

The product of its digits is 816480, while the sum is 48.

The square root of 1397292456 is about 37380.3752790151. The cubic root of 1397292456 is about 1117.9673101234.

The spelling of 1397292456 in words is "one billion, three hundred ninety-seven million, two hundred ninety-two thousand, four hundred fifty-six".