1397708160 has 256 divisors, whose sum is σ = 4803563520. Its totient is φ = 344678400.

The previous prime is 1397708119. The next prime is 1397708173. The reversal of 1397708160 is 618077931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1368450 + ... + 1369470.

It is an arithmetic number, because the mean of its divisors is an integer number (18763920).

Almost surely, 2^1397708160 is an apocalyptic number.

1397708160 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 1397708160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2401781760).

1397708160 is an abundant number, since it is smaller than the sum of its proper divisors (3405855360).

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

1397708160 is a wasteful number, since it uses less digits than its factorization.

1397708160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097 (or 1085 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 1397708160 is about 37385.9353233271. The cubic root of 1397708160 is about 1118.0781667543.

The spelling of 1397708160 in words is "one billion, three hundred ninety-seven million, seven hundred eight thousand, one hundred sixty".