30379198 has 4 divisors (see below), whose sum is σ = 45568800. Its totient is φ = 15189598.

The previous prime is 30379189. The next prime is 30379247. The reversal of 30379198 is 89197303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89197303 = 13 ⋅6861331.

It is a super-2 number, since 2×30379198² = 1845791342246408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30379198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7594798 + ... + 7594801.

It is an arithmetic number, because the mean of its divisors is an integer number (11392200).

Almost surely, 2^30379198 is an apocalyptic number.

30379198 is a deficient number, since it is larger than the sum of its proper divisors (15189602).

30379198 is a wasteful number, since it uses less digits than its factorization.

30379198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15189601.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 30379198 is about 5511.7327583982. The cubic root of 30379198 is about 312.0269467741.

The spelling of 30379198 in words is "thirty million, three hundred seventy-nine thousand, one hundred ninety-eight".