404432045 has 24 divisors (see below), whose sum is σ = 508789368. Its totient is φ = 308551680.

The previous prime is 404432027. The next prime is 404432051. The reversal of 404432045 is 540234404.

It can be written as a sum of positive squares in 4 ways, for example, as 96569929 + 307862116 = 9827^2 + 17546^2 .

It is not a de Polignac number, because 404432045 - 2¹⁶ = 404366509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 350189 + ... + 351341.

It is an arithmetic number, because the mean of its divisors is an integer number (21199557).

Almost surely, 2^404432045 is an apocalyptic number.

It is an amenable number.

404432045 is a deficient number, since it is larger than the sum of its proper divisors (104357323).

404432045 is a wasteful number, since it uses less digits than its factorization.

404432045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293 (or 1262 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 404432045 is about 20110.4958914493. The cubic root of 404432045 is about 739.5176092747.

Adding to 404432045 its reverse (540234404), we get a palindrome (944666449).

The spelling of 404432045 in words is "four hundred four million, four hundred thirty-two thousand, forty-five".