404264 has 16 divisors (see below), whose sum is σ = 866400. Its totient is φ = 173232.

The previous prime is 404251. The next prime is 404267. The reversal of 404264 is 462404.

It is a congruent number.

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

404264 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3554 + ... + 3665.

It is an arithmetic number, because the mean of its divisors is an integer number (54150).

2⁴⁰⁴²⁶⁴ is an apocalyptic number.

It is an amenable number.

404264 is an abundant number, since it is smaller than the sum of its proper divisors (462136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404264 is a wasteful number, since it uses less digits than its factorization.

404264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7232 (or 7228 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 404264 is about 635.8175839028. The cubic root of 404264 is about 73.9415169772.

Adding to 404264 its reverse (462404), we get a palindrome (866668).

The spelling of 404264 in words is "four hundred four thousand, two hundred sixty-four".