1396890560 has 112 divisors (see below), whose sum is σ = 3706063200. Its totient is φ = 497946624.

The previous prime is 1396890529. The next prime is 1396890569. The reversal of 1396890560 is 650986931.

It is a super-2 number, since 2×1396890560² = 3902606473234227200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396890569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114851 + ... + 126429.

It is an arithmetic number, because the mean of its divisors is an integer number (33089850).

Almost surely, 2^1396890560 is an apocalyptic number.

1396890560 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 1396890560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1853031600).

1396890560 is an abundant number, since it is smaller than the sum of its proper divisors (2309172640).

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

1396890560 is a wasteful number, since it uses less digits than its factorization.

1396890560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11638 (or 11628 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 1396890560 is about 37374.9991304348. Note that the first 3 decimals coincide. The cubic root of 1396890560 is about 1117.8601147942.

The spelling of 1396890560 in words is "one billion, three hundred ninety-six million, eight hundred ninety thousand, five hundred sixty".