30642300 has 216 divisors, whose sum is σ = 108371536. Its totient is φ = 7464960.

The previous prime is 30642281. The next prime is 30642301. The reversal of 30642300 is 324603.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30642301) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 315852 + ... + 315948.

Almost surely, 2^30642300 is an apocalyptic number.

30642300 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 30642300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54185768).

30642300 is an abundant number, since it is smaller than the sum of its proper divisors (77729236).

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

30642300 is a wasteful number, since it uses less digits than its factorization.

30642300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 30642300 is about 5535.5487532854. The cubic root of 30642300 is about 312.9251386937.

Adding to 30642300 its reverse (324603), we get a palindrome (30966903).

The spelling of 30642300 in words is "thirty million, six hundred forty-two thousand, three hundred".