30339072 has 78 divisors (see below), whose sum is σ = 87741992. Its totient is φ = 10100736.

The previous prime is 30339041. The next prime is 30339077. The reversal of 30339072 is 27093303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30339077) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36453 + ... + 37275.

Almost surely, 2^30339072 is an apocalyptic number.

30339072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30339072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43870996).

30339072 is an abundant number, since it is smaller than the sum of its proper divisors (57402920).

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

30339072 is an equidigital number, since it uses as much as digits as its factorization.

30339072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 27.

The square root of 30339072 is about 5508.0915025079. The cubic root of 30339072 is about 311.8895072254.

The spelling of 30339072 in words is "thirty million, three hundred thirty-nine thousand, seventy-two".