42187692 has 24 divisors (see below), whose sum is σ = 101833200. Its totient is φ = 13577536.

The previous prime is 42187669. The next prime is 42187697. The reversal of 42187692 is 29678124.

It is a self number, because there is not a number n which added to its sum of digits gives 42187692.

It is not an unprimeable number, because it can be changed into a prime (42187697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60267 + ... + 60962.

It is an arithmetic number, because the mean of its divisors is an integer number (4243050).

Almost surely, 2^42187692 is an apocalyptic number.

It is an amenable number.

42187692 is an abundant number, since it is smaller than the sum of its proper divisors (59645508).

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

42187692 is a wasteful number, since it uses less digits than its factorization.

42187692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121265 (or 121263 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 42187692 is about 6495.2053085334. The cubic root of 42187692 is about 348.1196906298.

The spelling of 42187692 in words is "forty-two million, one hundred eighty-seven thousand, six hundred ninety-two".