404112040 has 32 divisors (see below), whose sum is σ = 910728360. Its totient is φ = 161382400.

The previous prime is 404112029. The next prime is 404112061. The reversal of 404112040 is 40211404.

It can be written as a sum of positive squares in 4 ways, for example, as 393704964 + 10407076 = 19842^2 + 3226^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17760 + ... + 33520.

Almost surely, 2^404112040 is an apocalyptic number.

404112040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404112040 is an abundant number, since it is smaller than the sum of its proper divisors (506616320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404112040 is a wasteful number, since it uses less digits than its factorization.

404112040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16413 (or 16409 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 404112040 is about 20102.5381482041. The cubic root of 404112040 is about 739.3225111704.

Adding to 404112040 its reverse (40211404), we get a palindrome (444323444).

The spelling of 404112040 in words is "four hundred four million, one hundred twelve thousand, forty".