404250 has 96 divisors (see below), whose sum is σ = 1280448. Its totient is φ = 84000.

The previous prime is 404249. The next prime is 404251. The reversal of 404250 is 52404.

It is an interprime number because it is at equal distance from previous prime (404249) and next prime (404251).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404251) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36745 + ... + 36755.

It is an arithmetic number, because the mean of its divisors is an integer number (13338).

2⁴⁰⁴²⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (640224).

404250 is an abundant number, since it is smaller than the sum of its proper divisors (876198).

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

404250 is a wasteful number, since it uses less digits than its factorization.

404250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45 (or 28 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 404250 is about 635.8065743605. The cubic root of 404250 is about 73.9406634152.

Adding to 404250 its reverse (52404), we get a palindrome (456654).

The spelling of 404250 in words is "four hundred four thousand, two hundred fifty".