13406772 has 24 divisors (see below), whose sum is σ = 31562496. Its totient is φ = 4428928.

The previous prime is 13406759. The next prime is 13406773. The reversal of 13406772 is 27760431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13406773) 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, 3588 + ... + 6299.

It is an arithmetic number, because the mean of its divisors is an integer number (1315104).

Almost surely, 2^13406772 is an apocalyptic number.

13406772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13406772 is an abundant number, since it is smaller than the sum of its proper divisors (18155724).

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

13406772 is a wasteful number, since it uses less digits than its factorization.

13406772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10007 (or 10005 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 13406772 is about 3661.5259114200. The cubic root of 13406772 is about 237.5607792737.

The spelling of 13406772 in words is "thirteen million, four hundred six thousand, seven hundred seventy-two".