40838194 has 4 divisors (see below), whose sum is σ = 61257294. Its totient is φ = 20419096.

The previous prime is 40838123. The next prime is 40838227. The reversal of 40838194 is 49183804.

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., 40157569 + 680625 = 6337^2 + 825^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10209547 + ... + 10209550.

Almost surely, 2^40838194 is an apocalyptic number.

40838194 is a deficient number, since it is larger than the sum of its proper divisors (20419100).

40838194 is a wasteful number, since it uses less digits than its factorization.

40838194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20419099.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 40838194 is about 6390.4768210205. The cubic root of 40838194 is about 344.3675144261.

The spelling of 40838194 in words is "forty million, eight hundred thirty-eight thousand, one hundred ninety-four".