30056400 has 360 divisors, whose sum is σ = 122700480. Its totient is φ = 6969600.

The previous prime is 30056381. The next prime is 30056413. The reversal of 30056400 is 465003.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1306789 + ... + 1306811.

Almost surely, 2^30056400 is an apocalyptic number.

30056400 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30056400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61350240).

30056400 is an abundant number, since it is smaller than the sum of its proper divisors (92644080).

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

30056400 is a wasteful number, since it uses less digits than its factorization.

30056400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 30056400 is about 5482.3717495259. The cubic root of 30056400 is about 310.9178486019.

The spelling of 30056400 in words is "thirty million, fifty-six thousand, four hundred".