30048920 has 64 divisors (see below), whose sum is σ = 76170240. Its totient is φ = 10569600.

The previous prime is 30048913. The next prime is 30048923. The reversal of 30048920 is 2984003.

It is a self number, because there is not a number n which added to its sum of digits gives 30048920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30048923) 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, 12539 + ... + 14741.

It is an arithmetic number, because the mean of its divisors is an integer number (1190160).

Almost surely, 2^30048920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30048920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38085120).

30048920 is an abundant number, since it is smaller than the sum of its proper divisors (46121320).

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

30048920 is a wasteful number, since it uses less digits than its factorization.

30048920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256 (or 2252 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 30048920 is about 5481.6895205767. The cubic root of 30048920 is about 310.8920542236.

The spelling of 30048920 in words is "thirty million, forty-eight thousand, nine hundred twenty".