30907932 has 48 divisors (see below), whose sum is σ = 80607744. Its totient is φ = 9136000.

The previous prime is 30907909. The next prime is 30907949. The reversal of 30907932 is 23970903.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 30907893 and 30907902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2557 + ... + 8267.

It is an arithmetic number, because the mean of its divisors is an integer number (1679328).

Almost surely, 2^30907932 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 30907932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40303872).

30907932 is an abundant number, since it is smaller than the sum of its proper divisors (49699812).

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

30907932 is a wasteful number, since it uses less digits than its factorization.

30907932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5770 (or 5768 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 33.

The square root of 30907932 is about 5559.4902644037. The cubic root of 30907932 is about 313.8267669279.

The spelling of 30907932 in words is "thirty million, nine hundred seven thousand, nine hundred thirty-two".