1397447360 has 56 divisors (see below), whose sum is σ = 3442441680. Its totient is φ = 539700224.

The previous prime is 1397447351. The next prime is 1397447371. The reversal of 1397447360 is 637447931.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66014 + ... + 84573.

Almost surely, 2^1397447360 is an apocalyptic number.

1397447360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1397447360 is an abundant number, since it is smaller than the sum of its proper divisors (2044994320).

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

1397447360 is a wasteful number, since it uses less digits than its factorization.

1397447360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150633 (or 150623 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 44.

The square root of 1397447360 is about 37382.4472179123. The cubic root of 1397447360 is about 1118.0086212577.

The spelling of 1397447360 in words is "one billion, three hundred ninety-seven million, four hundred forty-seven thousand, three hundred sixty".