30906100 has 36 divisors (see below), whose sum is σ = 68887084. Its totient is φ = 12026880.

The previous prime is 30906097. The next prime is 30906107. The reversal of 30906100 is 160903.

It can be written as a sum of positive squares in 6 ways, for example, as 853776 + 30052324 = 924^2 + 5482^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30906107) 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, 477 + ... + 7876.

Almost surely, 2^30906100 is an apocalyptic number.

It is an amenable number.

30906100 is an abundant number, since it is smaller than the sum of its proper divisors (37980984).

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

30906100 is a wasteful number, since it uses less digits than its factorization.

30906100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8404 (or 8397 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 30906100 is about 5559.3254986554. The cubic root of 30906100 is about 313.8205663405.

The spelling of 30906100 in words is "thirty million, nine hundred six thousand, one hundred".