36404405 has 4 divisors (see below), whose sum is σ = 43685292. Its totient is φ = 29123520.

The previous prime is 36404387. The next prime is 36404413. The reversal of 36404405 is 50440463.

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 16459249 + 19945156 = 4057^2 + 4466^2 .

It is not a de Polignac number, because 36404405 - 2⁶ = 36404341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3640436 + ... + 3640445.

It is an arithmetic number, because the mean of its divisors is an integer number (10921323).

Almost surely, 2^36404405 is an apocalyptic number.

It is an amenable number.

36404405 is a deficient number, since it is larger than the sum of its proper divisors (7280887).

36404405 is an equidigital number, since it uses as much as digits as its factorization.

36404405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7280886.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 36404405 is about 6033.6063013757. The cubic root of 36404405 is about 331.4245274671.

Adding to 36404405 its reverse (50440463), we get a palindrome (86844868).

The spelling of 36404405 in words is "thirty-six million, four hundred four thousand, four hundred five".