30938908 has 48 divisors (see below), whose sum is σ = 72705024. Its totient is φ = 11125440.

The previous prime is 30938903. The next prime is 30938917. The reversal of 30938908 is 80983903.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30938903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141 + ... + 7867.

It is an arithmetic number, because the mean of its divisors is an integer number (1514688).

Almost surely, 2^30938908 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 30938908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36352512).

30938908 is an abundant number, since it is smaller than the sum of its proper divisors (41766116).

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

30938908 is a wasteful number, since it uses less digits than its factorization.

30938908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7762 (or 7760 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 30938908 is about 5562.2754336692. The cubic root of 30938908 is about 313.9315712247.

The spelling of 30938908 in words is "thirty million, nine hundred thirty-eight thousand, nine hundred eight".