1396654880 has 24 divisors (see below), whose sum is σ = 3299597532. Its totient is φ = 558661888.

The previous prime is 1396654879. The next prime is 1396654913. The reversal of 1396654880 is 884566931.

It can be written as a sum of positive squares in 2 ways, for example, as 1359249424 + 37405456 = 36868^2 + 6116^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4364387 + ... + 4364706.

Almost surely, 2^1396654880 is an apocalyptic number.

1396654880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1396654880 is an abundant number, since it is smaller than the sum of its proper divisors (1902942652).

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

1396654880 is an equidigital number, since it uses as much as digits as its factorization.

1396654880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8729108 (or 8729100 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The square root of 1396654880 is about 37371.8460876634. The cubic root of 1396654880 is about 1117.7972437058.

The spelling of 1396654880 in words is "one billion, three hundred ninety-six million, six hundred fifty-four thousand, eight hundred eighty".