40804490 has 8 divisors (see below), whose sum is σ = 73448100. Its totient is φ = 16321792.

The previous prime is 40804483. The next prime is 40804501. The reversal of 40804490 is 9440804.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 36808489 + 3996001 = 6067^2 + 1999^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2040215 + ... + 2040234.

Almost surely, 2^40804490 is an apocalyptic number.

40804490 is a deficient number, since it is larger than the sum of its proper divisors (32643610).

40804490 is a wasteful number, since it uses less digits than its factorization.

40804490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4080456.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 40804490 is about 6387.8392277827. The cubic root of 40804490 is about 344.2727521784.

The spelling of 40804490 in words is "forty million, eight hundred four thousand, four hundred ninety".