42570018 has 12 divisors (see below), whose sum is σ = 92235078. Its totient is φ = 14190000.

The previous prime is 42569993. The next prime is 42570029. The reversal of 42570018 is 81007524.

It can be written as a sum of positive squares in only one way, i.e., 40487769 + 2082249 = 6363^2 + 1443^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42569973 and 42570000.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1182483 + ... + 1182518.

Almost surely, 2^42570018 is an apocalyptic number.

42570018 is an abundant number, since it is smaller than the sum of its proper divisors (49665060).

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

42570018 is a wasteful number, since it uses less digits than its factorization.

42570018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365009 (or 2365006 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 42570018 is about 6524.5703306808. The cubic root of 42570018 is about 349.1681414628.

The spelling of 42570018 in words is "forty-two million, five hundred seventy thousand, eighteen".