30372342 has 96 divisors (see below), whose sum is σ = 82218240. Its totient is φ = 7263360.

The previous prime is 30372341. The next prime is 30372383. The reversal of 30372342 is 24327303.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30372341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77884 + ... + 78272.

It is an arithmetic number, because the mean of its divisors is an integer number (856440).

Almost surely, 2^30372342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30372342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41109120).

30372342 is an abundant number, since it is smaller than the sum of its proper divisors (51845898).

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

30372342 is a wasteful number, since it uses less digits than its factorization.

30372342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 24.

The square root of 30372342 is about 5511.1107773297. The cubic root of 30372342 is about 312.0034721836.

Adding to 30372342 its reverse (24327303), we get a palindrome (54699645).

The spelling of 30372342 in words is "thirty million, three hundred seventy-two thousand, three hundred forty-two".