30490998 has 16 divisors (see below), whose sum is σ = 61754880. Its totient is φ = 10034856.

The previous prime is 30490981. The next prime is 30491009. The reversal of 30490998 is 89909403.

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, 31690 + ... + 32637.

It is an arithmetic number, because the mean of its divisors is an integer number (3859680).

Almost surely, 2^30490998 is an apocalyptic number.

30490998 is an abundant number, since it is smaller than the sum of its proper divisors (31263882).

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

30490998 is a wasteful number, since it uses less digits than its factorization.

30490998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64411.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 30490998 is about 5521.8654456624. The cubic root of 30490998 is about 312.4092468202.

The spelling of 30490998 in words is "thirty million, four hundred ninety thousand, nine hundred ninety-eight".