30404198 has 16 divisors (see below), whose sum is σ = 50497344. Its totient is φ = 13613160.

The previous prime is 30404189. The next prime is 30404201. The reversal of 30404198 is 89140403.

It is a self number, because there is not a number n which added to its sum of digits gives 30404198.

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 in 7 ways as a sum of consecutive naturals, for example, 8840 + ... + 11787.

It is an arithmetic number, because the mean of its divisors is an integer number (3156084).

Almost surely, 2^30404198 is an apocalyptic number.

30404198 is a deficient number, since it is larger than the sum of its proper divisors (20093146).

30404198 is a wasteful number, since it uses less digits than its factorization.

30404198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20707.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 30404198 is about 5514.0001813565. Note that the first 3 decimals coincide. The cubic root of 30404198 is about 312.1125155772.

The spelling of 30404198 in words is "thirty million, four hundred four thousand, one hundred ninety-eight".