13378970 has 24 divisors (see below), whose sum is σ = 26472852. Its totient is φ = 4864640.

The previous prime is 13378961. The next prime is 13378991. The reversal of 13378970 is 7987331.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12623809 + 755161 = 3553^2 + 869^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4319 + ... + 6738.

Almost surely, 2^13378970 is an apocalyptic number.

13378970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13378970 is a deficient number, since it is larger than the sum of its proper divisors (13093882).

13378970 is a wasteful number, since it uses less digits than its factorization.

13378970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11086 (or 11075 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 13378970 is about 3657.7274365376. The cubic root of 13378970 is about 237.3964534768.

The spelling of 13378970 in words is "thirteen million, three hundred seventy-eight thousand, nine hundred seventy".