30236972398 has 4 divisors (see below), whose sum is σ = 45355458600. Its totient is φ = 15118486198.

The previous prime is 30236972383. The next prime is 30236972401. The reversal of 30236972398 is 89327963203.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7559243098 + ... + 7559243101.

It is an arithmetic number, because the mean of its divisors is an integer number (11338864650).

Almost surely, 2^30236972398 is an apocalyptic number.

30236972398 is a deficient number, since it is larger than the sum of its proper divisors (15118486202).

30236972398 is a wasteful number, since it uses less digits than its factorization.

30236972398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15118486201.

The product of its (nonzero) digits is 2939328, while the sum is 52.

The spelling of 30236972398 in words is "thirty billion, two hundred thirty-six million, nine hundred seventy-two thousand, three hundred ninety-eight".