13880970 has 40 divisors (see below), whose sum is σ = 37326564. Its totient is φ = 3701376.

The previous prime is 13880969. The next prime is 13880981. The reversal of 13880970 is 7908831.

It can be written as a sum of positive squares in 2 ways, for example, as 11512449 + 2368521 = 3393^2 + 1539^2 .

It is a Curzon number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 7759 + ... + 9378.

Almost surely, 2^13880970 is an apocalyptic number.

13880970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13880970 is an abundant number, since it is smaller than the sum of its proper divisors (23445594).

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

13880970 is a wasteful number, since it uses less digits than its factorization.

13880970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17156 (or 17147 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 13880970 is about 3725.7173805859. The cubic root of 13880970 is about 240.3292356430.

The spelling of 13880970 in words is "thirteen million, eight hundred eighty thousand, nine hundred seventy".