30243915 has 64 divisors (see below), whose sum is σ = 61017600. Its totient is φ = 14090112.

The previous prime is 30243893. The next prime is 30243943. The reversal of 30243915 is 51934203.

It is not a de Polignac number, because 30243915 - 2⁵ = 30243883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32892 + ... + 33798.

It is an arithmetic number, because the mean of its divisors is an integer number (953400).

Almost surely, 2^30243915 is an apocalyptic number.

30243915 is an abundant number, since it is smaller than the sum of its proper divisors (30773685).

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

30243915 is a wasteful number, since it uses less digits than its factorization.

30243915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953 (or 947 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 30243915 is about 5499.4467903599. The cubic root of 30243915 is about 311.5630903817.

The spelling of 30243915 in words is "thirty million, two hundred forty-three thousand, nine hundred fifteen".