40165194 has 32 divisors (see below), whose sum is σ = 82736640. Its totient is φ = 12993392.

The previous prime is 40165189. The next prime is 40165201. The reversal of 40165194 is 49156104.

It is a happy number.

It is a super-2 number, since 2×40165194² = 3226485618115272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28699 + ... + 30065.

It is an arithmetic number, because the mean of its divisors is an integer number (2585520).

Almost surely, 2^40165194 is an apocalyptic number.

40165194 is an abundant number, since it is smaller than the sum of its proper divisors (42571446).

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

40165194 is a wasteful number, since it uses less digits than its factorization.

40165194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 40165194 is about 6337.6015968188. The cubic root of 40165194 is about 342.4653389898.

The spelling of 40165194 in words is "forty million, one hundred sixty-five thousand, one hundred ninety-four".