13444474 has 16 divisors (see below), whose sum is σ = 20837376. Its totient is φ = 6501600.

The previous prime is 13444471. The next prime is 13444477. The reversal of 13444474 is 47444431.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13444471) and next prime (13444477).

It is a super-2 number, since 2×13444474² = 361507762273352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13444471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9769 + ... + 11059.

It is an arithmetic number, because the mean of its divisors is an integer number (1302336).

Almost surely, 2^13444474 is an apocalyptic number.

13444474 is a deficient number, since it is larger than the sum of its proper divisors (7392902).

13444474 is a wasteful number, since it uses less digits than its factorization.

13444474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461.

The product of its digits is 21504, while the sum is 31.

The square root of 13444474 is about 3666.6706969675. The cubic root of 13444474 is about 237.7832572341.

The spelling of 13444474 in words is "thirteen million, four hundred forty-four thousand, four hundred seventy-four".