30608900 has 72 divisors (see below), whose sum is σ = 77078400. Its totient is φ = 10333440.

The previous prime is 30608899. The next prime is 30608909. The reversal of 30608900 is 980603.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30608900.

It is not an unprimeable number, because it can be changed into a prime (30608909) 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, 50801 + ... + 51399.

Almost surely, 2^30608900 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 30608900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38539200).

30608900 is an abundant number, since it is smaller than the sum of its proper divisors (46469500).

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

30608900 is a wasteful number, since it uses less digits than its factorization.

30608900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 30608900 is about 5532.5310663384. The cubic root of 30608900 is about 312.8114015899.

The spelling of 30608900 in words is "thirty million, six hundred eight thousand, nine hundred".