13920170 has 16 divisors (see below), whose sum is σ = 27334368. Its totient is φ = 5061840.

The previous prime is 13920163. The next prime is 13920187. The reversal of 13920170 is 7102931.

It is a super-2 number, since 2×13920170² = 387542265657800, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 63164 + ... + 63383.

It is an arithmetic number, because the mean of its divisors is an integer number (1708398).

Almost surely, 2^13920170 is an apocalyptic number.

13920170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13920170 is a deficient number, since it is larger than the sum of its proper divisors (13414198).

13920170 is a wasteful number, since it uses less digits than its factorization.

13920170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126565.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 13920170 is about 3730.9744035573. The cubic root of 13920170 is about 240.5552537498. Note that the first 3 decimals are identical.

It can be divided in two parts, 13920 and 170, that multiplied together give a triangular number (2366400 = T₂₁₇₅).

The spelling of 13920170 in words is "thirteen million, nine hundred twenty thousand, one hundred seventy".