30442412 has 48 divisors (see below), whose sum is σ = 71538432. Its totient is φ = 10946880.

The previous prime is 30442411. The next prime is 30442429. The reversal of 30442412 is 21424403.

It is not an unprimeable number, because it can be changed into a prime (30442411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203 + ... + 7805.

It is an arithmetic number, because the mean of its divisors is an integer number (1490384).

Almost surely, 2^30442412 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 30442412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35769216).

30442412 is an abundant number, since it is smaller than the sum of its proper divisors (41096020).

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

30442412 is a wasteful number, since it uses less digits than its factorization.

30442412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7638 (or 7636 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 30442412 is about 5517.4642726528. The cubic root of 30442412 is about 312.2432220260.

Adding to 30442412 its reverse (21424403), we get a palindrome (51866815).

Subtracting from 30442412 its reverse (21424403), we obtain a square (9018009 = 3003²).

The spelling of 30442412 in words is "thirty million, four hundred forty-two thousand, four hundred twelve".