40104418 has 4 divisors (see below), whose sum is σ = 60156630. Its totient is φ = 20052208.

The previous prime is 40104397. The next prime is 40104431. The reversal of 40104418 is 81440104.

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., 29626249 + 10478169 = 5443^2 + 3237^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10026103 + ... + 10026106.

Almost surely, 2^40104418 is an apocalyptic number.

40104418 is a deficient number, since it is larger than the sum of its proper divisors (20052212).

40104418 is a wasteful number, since it uses less digits than its factorization.

40104418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20052211.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 40104418 is about 6332.8049077798. The cubic root of 40104418 is about 342.2925178788.

The spelling of 40104418 in words is "forty million, one hundred four thousand, four hundred eighteen".