939242439 has 16 divisors (see below), whose sum is σ = 1392611040. Its totient is φ = 625648320.

The previous prime is 939242429. The next prime is 939242443. The reversal of 939242439 is 934242939.

It is a happy number.

939242439 is a `hidden beast` number, since 93 + 92 + 42 + 439 = 666.

It is not a de Polignac number, because 939242439 - 2¹¹ = 939240391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 939242394 and 939242403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939242429) 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, 20859 + ... + 48099.

It is an arithmetic number, because the mean of its divisors is an integer number (87038190).

Almost surely, 2^939242439 is an apocalyptic number.

939242439 is a deficient number, since it is larger than the sum of its proper divisors (453368601).

939242439 is a wasteful number, since it uses less digits than its factorization.

939242439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28527 (or 28521 counting only the distinct ones).

The product of its digits is 419904, while the sum is 45.

The square root of 939242439 is about 30647.0624856608. The cubic root of 939242439 is about 979.3228832981.

The spelling of 939242439 in words is "nine hundred thirty-nine million, two hundred forty-two thousand, four hundred thirty-nine".