42036794 has 4 divisors (see below), whose sum is σ = 63055194. Its totient is φ = 21018396.

The previous prime is 42036781. The next prime is 42036803. The reversal of 42036794 is 49763024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 36156169 + 5880625 = 6013^2 + 2425^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10509197 + ... + 10509200.

Almost surely, 2^42036794 is an apocalyptic number.

42036794 is a deficient number, since it is larger than the sum of its proper divisors (21018400).

42036794 is a wasteful number, since it uses less digits than its factorization.

42036794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21018399.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 42036794 is about 6483.5787956961. The cubic root of 42036794 is about 347.7041403574.

The spelling of 42036794 in words is "forty-two million, thirty-six thousand, seven hundred ninety-four".