30439132 has 12 divisors (see below), whose sum is σ = 53564056. Its totient is φ = 15135120.

The previous prime is 30439099. The next prime is 30439133. The reversal of 30439132 is 23193403.

It is a happy number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 30439097 and 30439106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30439133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20298 + ... + 21745.

Almost surely, 2^30439132 is an apocalyptic number.

It is an amenable number.

30439132 is a deficient number, since it is larger than the sum of its proper divisors (23124924).

30439132 is a wasteful number, since it uses less digits than its factorization.

30439132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42228 (or 42226 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 30439132 is about 5517.1670266542. The cubic root of 30439132 is about 312.2320074684.

The spelling of 30439132 in words is "thirty million, four hundred thirty-nine thousand, one hundred thirty-two".