13700920 has 32 divisors (see below), whose sum is σ = 30935520. Its totient is φ = 5461120.

The previous prime is 13700899. The next prime is 13700971. The reversal of 13700920 is 2900731.

It is a junction number, because it is equal to n+sod(n) for n = 13700891 and 13700900.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 18069 + ... + 18811.

It is an arithmetic number, because the mean of its divisors is an integer number (966735).

Almost surely, 2^13700920 is an apocalyptic number.

13700920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13700920 is an abundant number, since it is smaller than the sum of its proper divisors (17234600).

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

13700920 is a wasteful number, since it uses less digits than its factorization.

13700920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215 (or 1211 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 13700920 is about 3701.4753815202. The cubic root of 13700920 is about 239.2856071030.

The spelling of 13700920 in words is "thirteen million, seven hundred thousand, nine hundred twenty".