30130278 has 16 divisors (see below), whose sum is σ = 60330096. Its totient is φ = 10031840.

The previous prime is 30130277. The next prime is 30130283. The reversal of 30130278 is 87203103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30130277) 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, 4000 + ... + 8732.

It is an arithmetic number, because the mean of its divisors is an integer number (3770631).

Almost surely, 2^30130278 is an apocalyptic number.

30130278 is an abundant number, since it is smaller than the sum of its proper divisors (30199818).

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

30130278 is a wasteful number, since it uses less digits than its factorization.

30130278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5799.

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

The square root of 30130278 is about 5489.1053915916. The cubic root of 30130278 is about 311.1723833495.

The spelling of 30130278 in words is "thirty million, one hundred thirty thousand, two hundred seventy-eight".