30495380 has 24 divisors (see below), whose sum is σ = 67411680. Its totient is φ = 11556000.

The previous prime is 30495379. The next prime is 30495391. The reversal of 30495380 is 8359403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39746 + ... + 40505.

It is an arithmetic number, because the mean of its divisors is an integer number (2808820).

Almost surely, 2^30495380 is an apocalyptic number.

It is an amenable number.

30495380 is an abundant number, since it is smaller than the sum of its proper divisors (36916300).

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

30495380 is a wasteful number, since it uses less digits than its factorization.

30495380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80279 (or 80277 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 30495380 is about 5522.2622176061. The cubic root of 30495380 is about 312.4242120213.

The spelling of 30495380 in words is "thirty million, four hundred ninety-five thousand, three hundred eighty".