40105194 has 16 divisors (see below), whose sum is σ = 81917568. Its totient is φ = 13083872.

The previous prime is 40105189. The next prime is 40105211. The reversal of 40105194 is 49150104.

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, 70827 + ... + 71390.

It is an arithmetic number, because the mean of its divisors is an integer number (5119848).

Almost surely, 2^40105194 is an apocalyptic number.

40105194 is an abundant number, since it is smaller than the sum of its proper divisors (41812374).

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

40105194 is a wasteful number, since it uses less digits than its factorization.

40105194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142269.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 40105194 is about 6332.8661757533. The cubic root of 40105194 is about 342.2947255930.

Adding to 40105194 its reverse (49150104), we get a palindrome (89255298).

The spelling of 40105194 in words is "forty million, one hundred five thousand, one hundred ninety-four".