11439738 has 32 divisors (see below), whose sum is σ = 26046720. Its totient is φ = 3719520.

The previous prime is 11439731. The next prime is 11439749. The reversal of 11439738 is 83793411.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11439731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370 + ... + 4797.

It is an arithmetic number, because the mean of its divisors is an integer number (813960).

Almost surely, 2^11439738 is an apocalyptic number.

11439738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11439738 is an abundant number, since it is smaller than the sum of its proper divisors (14606982).

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

11439738 is a wasteful number, since it uses less digits than its factorization.

11439738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5219 (or 5213 counting only the distinct ones).

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

The square root of 11439738 is about 3382.2681738739. The cubic root of 11439738 is about 225.3229141182.

The spelling of 11439738 in words is "eleven million, four hundred thirty-nine thousand, seven hundred thirty-eight".