13938774 has 16 divisors (see below), whose sum is σ = 28057008. Its totient is φ = 4616352.

The previous prime is 13938739. The next prime is 13938779. The reversal of 13938774 is 47783931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13938779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6457 + ... + 8340.

It is an arithmetic number, because the mean of its divisors is an integer number (1753563).

Almost surely, 2^13938774 is an apocalyptic number.

13938774 is an abundant number, since it is smaller than the sum of its proper divisors (14118234).

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

13938774 is a wasteful number, since it uses less digits than its factorization.

13938774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14959.

The product of its digits is 127008, while the sum is 42.

The square root of 13938774 is about 3733.4667535683. The cubic root of 13938774 is about 240.6623716397.

The spelling of 13938774 in words is "thirteen million, nine hundred thirty-eight thousand, seven hundred seventy-four".