404207 has 4 divisors (see below), whose sum is σ = 405480. Its totient is φ = 402936.

The previous prime is 404197. The next prime is 404213. The reversal of 404207 is 702404.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 404207 - 2⁴ = 404191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 404207.

It is not an unprimeable number, because it can be changed into a prime (404267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293 + ... + 945.

It is an arithmetic number, because the mean of its divisors is an integer number (101370).

2⁴⁰⁴²⁰⁷ is an apocalyptic number.

404207 is a deficient number, since it is larger than the sum of its proper divisors (1273).

404207 is an equidigital number, since it uses as much as digits as its factorization.

404207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272.

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 404207 is about 635.7727581455. The cubic root of 404207 is about 73.9380416372.

The spelling of 404207 in words is "four hundred four thousand, two hundred seven", and thus it is an iban number.