30442100 has 36 divisors (see below), whose sum is σ = 71143884. Its totient is φ = 11239680.

The previous prime is 30442091. The next prime is 30442103. The reversal of 30442100 is 124403.

It can be written as a sum of positive squares in 6 ways, for example, as 4104676 + 26337424 = 2026^2 + 5132^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30442103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10409 + ... + 13008.

It is an arithmetic number, because the mean of its divisors is an integer number (1976219).

Almost surely, 2^30442100 is an apocalyptic number.

It is an amenable number.

30442100 is an abundant number, since it is smaller than the sum of its proper divisors (40701784).

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

30442100 is a wasteful number, since it uses less digits than its factorization.

30442100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23444 (or 23437 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 30442100 is about 5517.4359987226. The cubic root of 30442100 is about 312.2421553101.

Adding to 30442100 its reverse (124403), we get a palindrome (30566503).

The spelling of 30442100 in words is "thirty million, four hundred forty-two thousand, one hundred".