1397012960 has 96 divisors (see below), whose sum is σ = 3852334080. Its totient is φ = 468767232.

The previous prime is 1397012941. The next prime is 1397013001. The reversal of 1397012960 is 692107931.

It is a happy number.

It is a congruent number.

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, 39371 + ... + 65909.

It is an arithmetic number, because the mean of its divisors is an integer number (40128480).

Almost surely, 2^1397012960 is an apocalyptic number.

1397012960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1397012960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1926167040).

1397012960 is an abundant number, since it is smaller than the sum of its proper divisors (2455321120).

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

1397012960 is a wasteful number, since it uses less digits than its factorization.

1397012960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26608 (or 26600 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 1397012960 is about 37376.6365527986. The cubic root of 1397012960 is about 1117.8927639952.

The spelling of 1397012960 in words is "one billion, three hundred ninety-seven million, twelve thousand, nine hundred sixty".