30439696 has 40 divisors (see below), whose sum is σ = 67834944. Its totient is φ = 12961920.

The previous prime is 30439687. The next prime is 30439697. The reversal of 30439696 is 69693403.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (30439697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18591 + ... + 20161.

Almost surely, 2^30439696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30439696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33917472).

30439696 is an abundant number, since it is smaller than the sum of its proper divisors (37395248).

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

30439696 is a wasteful number, since it uses less digits than its factorization.

30439696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759 (or 1753 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 40.

The square root of 30439696 is about 5517.2181396062. The cubic root of 30439696 is about 312.2339358826.

It can be divided in two parts, 304 and 39696, that added together give a square (40000 = 200²).

The spelling of 30439696 in words is "thirty million, four hundred thirty-nine thousand, six hundred ninety-six".