30996198 has 24 divisors (see below), whose sum is σ = 67263768. Its totient is φ = 10315872.

The previous prime is 30996197. The next prime is 30996209. The reversal of 30996198 is 89169903.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30996197) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17761 + ... + 19427.

It is an arithmetic number, because the mean of its divisors is an integer number (2802657).

Almost surely, 2^30996198 is an apocalyptic number.

30996198 is an abundant number, since it is smaller than the sum of its proper divisors (36267570).

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

30996198 is a wasteful number, since it uses less digits than its factorization.

30996198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708 (or 2705 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 30996198 is about 5567.4229226816. The cubic root of 30996198 is about 314.1252222095.

The spelling of 30996198 in words is "thirty million, nine hundred ninety-six thousand, one hundred ninety-eight".