30799998 has 24 divisors (see below), whose sum is σ = 67829736. Its totient is φ = 10098000.

The previous prime is 30799973. The next prime is 30800009. The reversal of 30799998 is 89999703.

It is a happy number.

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 11 ways as a sum of consecutive naturals, for example, 12928 + ... + 15123.

It is an arithmetic number, because the mean of its divisors is an integer number (2826239).

Almost surely, 2^30799998 is an apocalyptic number.

30799998 is an abundant number, since it is smaller than the sum of its proper divisors (37029738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30799998 is a wasteful number, since it uses less digits than its factorization.

30799998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28120 (or 28117 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 54.

The square root of 30799998 is about 5549.7745900171. The cubic root of 30799998 is about 313.4610346633.

The spelling of 30799998 in words is "thirty million, seven hundred ninety-nine thousand, nine hundred ninety-eight".