30900375 has 72 divisors (see below), whose sum is σ = 61497072. Its totient is φ = 14916000.

The previous prime is 30900367. The next prime is 30900377. The reversal of 30900375 is 57300903.

It is not a de Polignac number, because 30900375 - 2³ = 30900367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30900377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 136012 + ... + 136238.

It is an arithmetic number, because the mean of its divisors is an integer number (854126).

Almost surely, 2^30900375 is an apocalyptic number.

30900375 is a deficient number, since it is larger than the sum of its proper divisors (30596697).

30900375 is a wasteful number, since it uses less digits than its factorization.

30900375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 27.

The square root of 30900375 is about 5558.8105742146. The cubic root of 30900375 is about 313.8011879256.

The spelling of 30900375 in words is "thirty million, nine hundred thousand, three hundred seventy-five".