30372982 has 16 divisors (see below), whose sum is σ = 50779440. Its totient is φ = 13540608.

The previous prime is 30372977. The next prime is 30372983. The reversal of 30372982 is 28927303.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30372983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22863 + ... + 24154.

It is an arithmetic number, because the mean of its divisors is an integer number (3173715).

Almost surely, 2^30372982 is an apocalyptic number.

30372982 is a deficient number, since it is larger than the sum of its proper divisors (20406458).

30372982 is a wasteful number, since it uses less digits than its factorization.

30372982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47055.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 30372982 is about 5511.1688415435. The cubic root of 30372982 is about 312.0056636601.

The spelling of 30372982 in words is "thirty million, three hundred seventy-two thousand, nine hundred eighty-two".