13771444 has 12 divisors (see below), whose sum is σ = 24439968. Its totient is φ = 6788600.

The previous prime is 13771427. The next prime is 13771477. The reversal of 13771444 is 44417731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23962 + ... + 24529.

It is an arithmetic number, because the mean of its divisors is an integer number (2036664).

Almost surely, 2^13771444 is an apocalyptic number.

It is an amenable number.

13771444 is a deficient number, since it is larger than the sum of its proper divisors (10668524).

13771444 is a wasteful number, since it uses less digits than its factorization.

13771444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48566 (or 48564 counting only the distinct ones).

The product of its digits is 9408, while the sum is 31.

The square root of 13771444 is about 3710.9896254234. The cubic root of 13771444 is about 239.6954702350.

The spelling of 13771444 in words is "thirteen million, seven hundred seventy-one thousand, four hundred forty-four".