30664998 has 96 divisors (see below), whose sum is σ = 83044416. Its totient is φ = 7962624.

The previous prime is 30664987. The next prime is 30664999. The reversal of 30664998 is 89946603.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30664999) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 158790 + ... + 158982.

It is an arithmetic number, because the mean of its divisors is an integer number (865046).

Almost surely, 2^30664998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30664998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41522208).

30664998 is an abundant number, since it is smaller than the sum of its proper divisors (52379418).

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

30664998 is a wasteful number, since it uses less digits than its factorization.

30664998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 30664998 is about 5537.5985770007. The cubic root of 30664998 is about 313.0023850900.

The spelling of 30664998 in words is "thirty million, six hundred sixty-four thousand, nine hundred ninety-eight".