30872442 has 32 divisors (see below), whose sum is σ = 65653632. Its totient is φ = 9644544.

The previous prime is 30872441. The next prime is 30872449. The reversal of 30872442 is 24427803.

It is not an unprimeable number, because it can be changed into a prime (30872441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31443 + ... + 32409.

It is an arithmetic number, because the mean of its divisors is an integer number (2051676).

Almost surely, 2^30872442 is an apocalyptic number.

30872442 is an abundant number, since it is smaller than the sum of its proper divisors (34781190).

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

30872442 is a wasteful number, since it uses less digits than its factorization.

30872442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 30872442 is about 5556.2975082333. The cubic root of 30872442 is about 313.7066038401.

The spelling of 30872442 in words is "thirty million, eight hundred seventy-two thousand, four hundred forty-two".