30278130 has 32 divisors (see below), whose sum is σ = 72975168. Its totient is φ = 8040000.

The previous prime is 30278119. The next prime is 30278177. The reversal of 30278130 is 3187203.

It is a self number, because there is not a number n which added to its sum of digits gives 30278130.

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, 5520 + ... + 9540.

It is an arithmetic number, because the mean of its divisors is an integer number (2280474).

Almost surely, 2^30278130 is an apocalyptic number.

30278130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30278130 is an abundant number, since it is smaller than the sum of its proper divisors (42697038).

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

30278130 is a wasteful number, since it uses less digits than its factorization.

30278130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4282.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 30278130 is about 5502.5566784905. The cubic root of 30278130 is about 311.6805367476.

The spelling of 30278130 in words is "thirty million, two hundred seventy-eight thousand, one hundred thirty".