404575969 has 16 divisors (see below), whose sum is σ = 466860928. Its totient is φ = 343429632.

The previous prime is 404575939. The next prime is 404575991. The reversal of 404575969 is 969575404.

It is a happy number.

It is not a de Polignac number, because 404575969 - 2¹¹ = 404573921 is a prime.

It is a super-2 number, since 2×404575969² = 327363429384577922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404575909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 600817 + ... + 601489.

It is an arithmetic number, because the mean of its divisors is an integer number (29178808).

Almost surely, 2^404575969 is an apocalyptic number.

It is an amenable number.

404575969 is a deficient number, since it is larger than the sum of its proper divisors (62284959).

404575969 is a wasteful number, since it uses less digits than its factorization.

404575969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The square root of 404575969 is about 20114.0739036129. The cubic root of 404575969 is about 739.6053221638.

The spelling of 404575969 in words is "four hundred four million, five hundred seventy-five thousand, nine hundred sixty-nine".