30472915 has 16 divisors (see below), whose sum is σ = 40157280. Its totient is φ = 22014720.

The previous prime is 30472889. The next prime is 30472919. The reversal of 30472915 is 51927403.

It is not a de Polignac number, because 30472915 - 2⁷ = 30472787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30472919) 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, 6871 + ... + 10399.

It is an arithmetic number, because the mean of its divisors is an integer number (2509830).

Almost surely, 2^30472915 is an apocalyptic number.

30472915 is a deficient number, since it is larger than the sum of its proper divisors (9684365).

30472915 is a wasteful number, since it uses less digits than its factorization.

30472915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3702.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 30472915 is about 5520.2278032704. The cubic root of 30472915 is about 312.3474754348.

The spelling of 30472915 in words is "thirty million, four hundred seventy-two thousand, nine hundred fifteen".