404323031 has 8 divisors (see below), whose sum is σ = 465457440. Its totient is φ = 344032128.

The previous prime is 404323009. The next prime is 404323033. The reversal of 404323031 is 130323404.

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

It is a cyclic number.

It is not a de Polignac number, because 404323031 - 2¹⁰ = 404322007 is a prime.

It is a super-2 number, since 2×404323031² = 326954226794053922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 404322994 and 404323012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404323033) 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, 209846 + ... + 211763.

It is an arithmetic number, because the mean of its divisors is an integer number (58182180).

Almost surely, 2^404323031 is an apocalyptic number.

404323031 is a deficient number, since it is larger than the sum of its proper divisors (61134409).

404323031 is a wasteful number, since it uses less digits than its factorization.

404323031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421753.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 404323031 is about 20107.7853330495. The cubic root of 404323031 is about 739.4511580474.

Adding to 404323031 its reverse (130323404), we get a palindrome (534646435).

The spelling of 404323031 in words is "four hundred four million, three hundred twenty-three thousand, thirty-one".