404240347 has 12 divisors (see below), whose sum is σ = 476684616. Its totient is φ = 341742240.

The previous prime is 404240339. The next prime is 404240359. The reversal of 404240347 is 743042404.

It is not a de Polignac number, because 404240347 - 2³ = 404240339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404240747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52929 + ... + 60082.

It is an arithmetic number, because the mean of its divisors is an integer number (39723718).

Almost surely, 2^404240347 is an apocalyptic number.

404240347 is a deficient number, since it is larger than the sum of its proper divisors (72444269).

404240347 is a wasteful number, since it uses less digits than its factorization.

404240347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113098 (or 113091 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 404240347 is about 20105.7292083625. The cubic root of 404240347 is about 739.4007487269.

The spelling of 404240347 in words is "four hundred four million, two hundred forty thousand, three hundred forty-seven".