13168920 has 32 divisors (see below), whose sum is σ = 39507120. Its totient is φ = 3511680.

The previous prime is 13168901. The next prime is 13168921. The reversal of 13168920 is 2986131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13168921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54751 + ... + 54990.

Almost surely, 2^13168920 is an apocalyptic number.

13168920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13168920 is an abundant number, since it is smaller than the sum of its proper divisors (26338200).

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

13168920 is a wasteful number, since it uses less digits than its factorization.

13168920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109755 (or 109751 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 13168920 is about 3628.9006599795. The cubic root of 13168920 is about 236.1475186098.

The spelling of 13168920 in words is "thirteen million, one hundred sixty-eight thousand, nine hundred twenty".