30312300 has 72 divisors (see below), whose sum is σ = 88883200. Its totient is φ = 7974720.

The previous prime is 30312299. The next prime is 30312307. The reversal of 30312300 is 321303.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (30312307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23061 + ... + 24339.

Almost surely, 2^30312300 is an apocalyptic number.

30312300 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 30312300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44441600).

30312300 is an abundant number, since it is smaller than the sum of its proper divisors (58570900).

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

30312300 is a wasteful number, since it uses less digits than its factorization.

30312300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375 (or 1368 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 30312300 is about 5505.6607232920. The cubic root of 30312300 is about 311.7977403760.

Adding to 30312300 its reverse (321303), we get a palindrome (30633603).

The spelling of 30312300 in words is "thirty million, three hundred twelve thousand, three hundred".