42641836 has 12 divisors (see below), whose sum is σ = 74713912. Its totient is φ = 21295008.

The previous prime is 42641821. The next prime is 42641843. The reversal of 42641836 is 63814624.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2505 + ... + 9568.

Almost surely, 2^42641836 is an apocalyptic number.

It is an amenable number.

42641836 is a deficient number, since it is larger than the sum of its proper divisors (32072076).

42641836 is a wasteful number, since it uses less digits than its factorization.

42641836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12960 (or 12958 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 42641836 is about 6530.0716688257. The cubic root of 42641836 is about 349.3643865363.

The spelling of 42641836 in words is "forty-two million, six hundred forty-one thousand, eight hundred thirty-six".