30398898 has 32 divisors (see below), whose sum is σ = 64247040. Its totient is φ = 9562320.

The previous prime is 30398897. The next prime is 30398899. The reversal of 30398898 is 89889303.

It is an interprime number because it is at equal distance from previous prime (30398897) and next prime (30398899).

It is a super-2 number, since 2×30398898² = 1848185999228808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30398897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52953 + ... + 53523.

It is an arithmetic number, because the mean of its divisors is an integer number (2007720).

Almost surely, 2^30398898 is an apocalyptic number.

30398898 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

30398898 is an abundant number, since it is smaller than the sum of its proper divisors (33848142).

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

30398898 is a wasteful number, since it uses less digits than its factorization.

30398898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062.

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 30398898 is about 5513.5195655770. The cubic root of 30398898 is about 312.0943789100.

The spelling of 30398898 in words is "thirty million, three hundred ninety-eight thousand, eight hundred ninety-eight".