13930770 has 32 divisors (see below), whose sum is σ = 38210688. Its totient is φ = 3184128.

The previous prime is 13930747. The next prime is 13930789. The reversal of 13930770 is 7703931.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32959 + ... + 33378.

It is an arithmetic number, because the mean of its divisors is an integer number (1194084).

Almost surely, 2^13930770 is an apocalyptic number.

13930770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13930770 is an abundant number, since it is smaller than the sum of its proper divisors (24279918).

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

13930770 is a wasteful number, since it uses less digits than its factorization.

13930770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66354.

The product of its (nonzero) digits is 3969, while the sum is 30.

The square root of 13930770 is about 3732.3946736646. The cubic root of 13930770 is about 240.6162979931.

The spelling of 13930770 in words is "thirteen million, nine hundred thirty thousand, seven hundred seventy".