404463431 has 8 divisors (see below), whose sum is σ = 426729600. Its totient is φ = 382295160.

The previous prime is 404463427. The next prime is 404463457. The reversal of 404463431 is 134364404.

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 404463431 - 2² = 404463427 is a prime.

It is a super-2 number, since 2×404463431² = 327181334032583522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404463394 and 404463403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404463481) 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, 15905 + ... + 32586.

It is an arithmetic number, because the mean of its divisors is an integer number (53341200).

Almost surely, 2^404463431 is an apocalyptic number.

404463431 is a deficient number, since it is larger than the sum of its proper divisors (22266169).

404463431 is a wasteful number, since it uses less digits than its factorization.

404463431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48949.

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 404463431 is about 20111.2762150988. The cubic root of 404463431 is about 739.5367388990.

The spelling of 404463431 in words is "four hundred four million, four hundred sixty-three thousand, four hundred thirty-one".