40991704 has 32 divisors (see below), whose sum is σ = 86375520. Its totient is φ = 18095616.

The previous prime is 40991693. The next prime is 40991711. The reversal of 40991704 is 40719904.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 40991704.

It is a congruent number.

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, 6177 + ... + 10960.

It is an arithmetic number, because the mean of its divisors is an integer number (2699235).

Almost surely, 2^40991704 is an apocalyptic number.

It is an amenable number.

40991704 is an abundant number, since it is smaller than the sum of its proper divisors (45383816).

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

40991704 is a wasteful number, since it uses less digits than its factorization.

40991704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17179 (or 17175 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 40991704 is about 6402.4763958956. The cubic root of 40991704 is about 344.7984652254.

The spelling of 40991704 in words is "forty million, nine hundred ninety-one thousand, seven hundred four".