42530188 has 6 divisors (see below), whose sum is σ = 74427836. Its totient is φ = 21265092.

The previous prime is 42530179. The next prime is 42530231. The reversal of 42530188 is 88103524.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5316270 + ... + 5316277.

Almost surely, 2^42530188 is an apocalyptic number.

It is an amenable number.

42530188 is a deficient number, since it is larger than the sum of its proper divisors (31897648).

42530188 is a wasteful number, since it uses less digits than its factorization.

42530188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10632551 (or 10632549 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 42530188 is about 6521.5173081117. The cubic root of 42530188 is about 349.0592095009.

The spelling of 42530188 in words is "forty-two million, five hundred thirty thousand, one hundred eighty-eight".