42194736 has 40 divisors (see below), whose sum is σ = 121115760. Its totient is φ = 14064768.

The previous prime is 42194693. The next prime is 42194741. The reversal of 42194736 is 63749124.

It is a super-2 number, since 2×42194736² = 3560791492219392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 42194736.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48405 + ... + 49268.

It is an arithmetic number, because the mean of its divisors is an integer number (3027894).

Almost surely, 2^42194736 is an apocalyptic number.

It is an amenable number.

42194736 is an abundant number, since it is smaller than the sum of its proper divisors (78921024).

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

42194736 is a wasteful number, since it uses less digits than its factorization.

42194736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97690 (or 97678 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 42194736 is about 6495.7475320397. The cubic root of 42194736 is about 348.1390645161.

The spelling of 42194736 in words is "forty-two million, one hundred ninety-four thousand, seven hundred thirty-six".