30049998 has 32 divisors (see below), whose sum is σ = 66683520. Its totient is φ = 8950560.

The previous prime is 30049979. The next prime is 30050047. The reversal of 30049998 is 89994003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36 + ... + 7752.

It is an arithmetic number, because the mean of its divisors is an integer number (2083860).

Almost surely, 2^30049998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30049998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33341760).

30049998 is an abundant number, since it is smaller than the sum of its proper divisors (36633522).

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

30049998 is a wasteful number, since it uses less digits than its factorization.

30049998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7792.

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

The square root of 30049998 is about 5481.7878470441. The cubic root of 30049998 is about 310.8957719127.

The spelling of 30049998 in words is "thirty million, forty-nine thousand, nine hundred ninety-eight".