40804669 has 4 divisors (see below), whose sum is σ = 41473660. Its totient is φ = 40135680.

The previous prime is 40804651. The next prime is 40804681. The reversal of 40804669 is 96640804.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4347225 + 36457444 = 2085^2 + 6038^2 .

It is a cyclic number.

It is not a de Polignac number, because 40804669 - 2⁹ = 40804157 is a prime.

It is a super-2 number, since 2×40804669² = 3330042024399122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40804619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334404 + ... + 334525.

It is an arithmetic number, because the mean of its divisors is an integer number (10368415).

Almost surely, 2^40804669 is an apocalyptic number.

It is an amenable number.

40804669 is a deficient number, since it is larger than the sum of its proper divisors (668991).

40804669 is an equidigital number, since it uses as much as digits as its factorization.

40804669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668990.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 40804669 is about 6387.8532387650. The cubic root of 40804669 is about 344.2732555931.

The spelling of 40804669 in words is "forty million, eight hundred four thousand, six hundred sixty-nine".