30275982 has 24 divisors (see below), whose sum is σ = 71561880. Its totient is φ = 9174480.

The previous prime is 30275957. The next prime is 30275989. The reversal of 30275982 is 28957203.

It is a happy number.

It is a Smith number, since the sum of its digits (36) 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 (30275989) 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, 76257 + ... + 76652.

It is an arithmetic number, because the mean of its divisors is an integer number (2981745).

Almost surely, 2^30275982 is an apocalyptic number.

30275982 is an abundant number, since it is smaller than the sum of its proper divisors (41285898).

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

30275982 is a wasteful number, since it uses less digits than its factorization.

30275982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152928 (or 152925 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 30275982 is about 5502.3614930319. The cubic root of 30275982 is about 311.6731661292.

It can be divided in two parts, 3027598 and 2, that added together give a square (3027600 = 1740²).

The spelling of 30275982 in words is "thirty million, two hundred seventy-five thousand, nine hundred eighty-two".