13275444 has 48 divisors (see below), whose sum is σ = 38127488. Its totient is φ = 3500928.

The previous prime is 13275421. The next prime is 13275481. The reversal of 13275444 is 44457231.

It is a congruent 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, 4987 + ... + 7170.

Almost surely, 2^13275444 is an apocalyptic number.

13275444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13275444 is an abundant number, since it is smaller than the sum of its proper divisors (24852044).

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

13275444 is a wasteful number, since it uses less digits than its factorization.

13275444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12184 (or 12182 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 13275444 is about 3643.5482705736. The cubic root of 13275444 is about 236.7825454705.

The spelling of 13275444 in words is "thirteen million, two hundred seventy-five thousand, four hundred forty-four".