30042278 has 32 divisors (see below), whose sum is σ = 54466560. Its totient is φ = 12149280.

The previous prime is 30042263. The next prime is 30042323. The reversal of 30042278 is 87224003.

It is a congruent number.

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, 24848 + ... + 26028.

It is an arithmetic number, because the mean of its divisors is an integer number (1702080).

Almost surely, 2^30042278 is an apocalyptic number.

30042278 is a deficient number, since it is larger than the sum of its proper divisors (24424282).

30042278 is a wasteful number, since it uses less digits than its factorization.

30042278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 30042278 is about 5481.0836519798. The cubic root of 30042278 is about 310.8691460548.

The spelling of 30042278 in words is "thirty million, forty-two thousand, two hundred seventy-eight".