30168998 has 16 divisors (see below), whose sum is σ = 47750640. Its totient is φ = 14256000.

The previous prime is 30168967. The next prime is 30169039. The reversal of 30168998 is 89986103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22178 + ... + 23498.

It is an arithmetic number, because the mean of its divisors is an integer number (2984415).

Almost surely, 2^30168998 is an apocalyptic number.

30168998 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

30168998 is a deficient number, since it is larger than the sum of its proper divisors (17581642).

30168998 is a wasteful number, since it uses less digits than its factorization.

30168998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 30168998 is about 5492.6312455871. The cubic root of 30168998 is about 311.3056207218.

The spelling of 30168998 in words is "thirty million, one hundred sixty-eight thousand, nine hundred ninety-eight".