404312043 has 8 divisors (see below), whose sum is σ = 540683728. Its totient is φ = 268740864.

The previous prime is 404312023. The next prime is 404312053. The reversal of 404312043 is 340213404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 404312043 - 2⁵ = 404312011 is a prime.

It is a super-2 number, since 2×404312043² = 326936456229667698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404312023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198946 + ... + 200967.

It is an arithmetic number, because the mean of its divisors is an integer number (67585466).

Almost surely, 2^404312043 is an apocalyptic number.

404312043 is a deficient number, since it is larger than the sum of its proper divisors (136371685).

404312043 is a wasteful number, since it uses less digits than its factorization.

404312043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400253.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 404312043 is about 20107.5121036890. The cubic root of 404312043 is about 739.4444594737. Note that the first 4 decimals are identical.

Adding to 404312043 its reverse (340213404), we get a palindrome (744525447).

The spelling of 404312043 in words is "four hundred four million, three hundred twelve thousand, forty-three".