1397056960 has 112 divisors (see below), whose sum is σ = 3670474752. Its totient is φ = 503193600.

The previous prime is 1397056939. The next prime is 1397056963. The reversal of 1397056960 is 696507931.

It is a self number, because there is not a number n which added to its sum of digits gives 1397056960.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397056963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166465 + ... + 174655.

It is an arithmetic number, because the mean of its divisors is an integer number (32772096).

Almost surely, 2^1397056960 is an apocalyptic number.

1397056960 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 1397056960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1835237376).

1397056960 is an abundant number, since it is smaller than the sum of its proper divisors (2273417792).

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

1397056960 is a wasteful number, since it uses less digits than its factorization.

1397056960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8262 (or 8252 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 46.

The square root of 1397056960 is about 37377.2251511532. The cubic root of 1397056960 is about 1117.9045001701.

The spelling of 1397056960 in words is "one billion, three hundred ninety-seven million, fifty-six thousand, nine hundred sixty".