42130636 has 24 divisors (see below), whose sum is σ = 75296480. Its totient is φ = 20621952.

The previous prime is 42130631. The next prime is 42130691. The reversal of 42130636 is 63603124.

It is a self number, because there is not a number n which added to its sum of digits gives 42130636.

It is not an unprimeable number, because it can be changed into a prime (42130631) 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, 45385 + ... + 46303.

Almost surely, 2^42130636 is an apocalyptic number.

It is an amenable number.

42130636 is a deficient number, since it is larger than the sum of its proper divisors (33165844).

42130636 is a wasteful number, since it uses less digits than its factorization.

42130636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153 (or 1151 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 42130636 is about 6490.8116595692. The cubic root of 42130636 is about 347.9626837161.

The spelling of 42130636 in words is "forty-two million, one hundred thirty thousand, six hundred thirty-six".