30278134 has 16 divisors (see below), whose sum is σ = 49351680. Its totient is φ = 13879080.

The previous prime is 30278119. The next prime is 30278177. The reversal of 30278134 is 43187203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11674 + ... + 14029.

It is an arithmetic number, because the mean of its divisors is an integer number (3084480).

Almost surely, 2^30278134 is an apocalyptic number.

30278134 is a deficient number, since it is larger than the sum of its proper divisors (19073546).

30278134 is a wasteful number, since it uses less digits than its factorization.

30278134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25755.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 30278134 is about 5502.5570419579. The cubic root of 30278134 is about 311.6805504728.

The spelling of 30278134 in words is "thirty million, two hundred seventy-eight thousand, one hundred thirty-four".