42434236 has 12 divisors (see below), whose sum is σ = 79972312. Its totient is φ = 19585008.

The previous prime is 42434233. The next prime is 42434237. The reversal of 42434236 is 63243424.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42434233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407970 + ... + 408073.

Almost surely, 2^42434236 is an apocalyptic number.

It is an amenable number.

42434236 is a deficient number, since it is larger than the sum of its proper divisors (37538076).

42434236 is a wasteful number, since it uses less digits than its factorization.

42434236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816060 (or 816058 counting only the distinct ones).

The product of its digits is 13824, while the sum is 28.

The square root of 42434236 is about 6514.1565839332. The cubic root of 42434236 is about 348.7965086589.

The spelling of 42434236 in words is "forty-two million, four hundred thirty-four thousand, two hundred thirty-six".