30272913 has 16 divisors (see below), whose sum is σ = 48926400. Its totient is φ = 18347040.

The previous prime is 30272857. The next prime is 30272917. The reversal of 30272913 is 31927203.

It is not a de Polignac number, because 30272913 - 2⁸ = 30272657 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30272917) 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, 50668 + ... + 51261.

It is an arithmetic number, because the mean of its divisors is an integer number (3057900).

Almost surely, 2^30272913 is an apocalyptic number.

30272913 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

30272913 is a deficient number, since it is larger than the sum of its proper divisors (18653487).

30272913 is a wasteful number, since it uses less digits than its factorization.

30272913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101949 (or 101943 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 30272913 is about 5502.0826057049. The cubic root of 30272913 is about 311.6626345988.

The spelling of 30272913 in words is "thirty million, two hundred seventy-two thousand, nine hundred thirteen".