13974138 has 24 divisors (see below), whose sum is σ = 30371328. Its totient is φ = 4643592.

The previous prime is 13974131. The next prime is 13974151. The reversal of 13974138 is 83147931.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13974131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5881 + ... + 7907.

It is an arithmetic number, because the mean of its divisors is an integer number (1265472).

Almost surely, 2^13974138 is an apocalyptic number.

13974138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13974138 is an abundant number, since it is smaller than the sum of its proper divisors (16397190).

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

13974138 is a wasteful number, since it uses less digits than its factorization.

13974138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418 (or 2415 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 13974138 is about 3738.1998341448. The cubic root of 13974138 is about 240.8657275609.

The spelling of 13974138 in words is "thirteen million, nine hundred seventy-four thousand, one hundred thirty-eight".