42188830 has 16 divisors (see below), whose sum is σ = 78390144. Its totient is φ = 16331040.

The previous prime is 42188821. The next prime is 42188879. The reversal of 42188830 is 3888124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67737 + ... + 68356.

It is an arithmetic number, because the mean of its divisors is an integer number (4899384).

Almost surely, 2^42188830 is an apocalyptic number.

42188830 is a deficient number, since it is larger than the sum of its proper divisors (36201314).

42188830 is a wasteful number, since it uses less digits than its factorization.

42188830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136131.

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 42188830 is about 6495.2929110241. The cubic root of 42188830 is about 348.1228207422.

The spelling of 42188830 in words is "forty-two million, one hundred eighty-eight thousand, eight hundred thirty".