404226731 has 8 divisors (see below), whose sum is σ = 428235984. Its totient is φ = 380243200.

The previous prime is 404226709. The next prime is 404226733. The reversal of 404226731 is 137622404.

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 404226731 - 2¹⁴ = 404210347 is a prime.

It is a super-2 number, since 2×404226731² = 326798500109892722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 404226694 and 404226703.

It is not an unprimeable number, because it can be changed into a prime (404226733) 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, 32831 + ... + 43431.

It is an arithmetic number, because the mean of its divisors is an integer number (53529498).

Almost surely, 2^404226731 is an apocalyptic number.

404226731 is a deficient number, since it is larger than the sum of its proper divisors (24009253).

404226731 is a wasteful number, since it uses less digits than its factorization.

404226731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12861.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 404226731 is about 20105.3905955592. The cubic root of 404226731 is about 739.3924469054.

The spelling of 404226731 in words is "four hundred four million, two hundred twenty-six thousand, seven hundred thirty-one".