30453800 has 144 divisors (see below), whose sum is σ = 82712340. Its totient is φ = 10383360.

The previous prime is 30453781. The next prime is 30453809. The reversal of 30453800 is 835403.

It can be written as a sum of positive squares in 18 ways, for example, as 2172676 + 28281124 = 1474^2 + 5318^2 .

It is not an unprimeable number, because it can be changed into a prime (30453809) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 574574 + ... + 574626.

Almost surely, 2^30453800 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 30453800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41356170).

30453800 is an abundant number, since it is smaller than the sum of its proper divisors (52258540).

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

30453800 is a wasteful number, since it uses less digits than its factorization.

30453800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 30453800 is about 5518.4961719657. The cubic root of 30453800 is about 312.2821521707.

The spelling of 30453800 in words is "thirty million, four hundred fifty-three thousand, eight hundred".