404622420 has 48 divisors (see below), whose sum is σ = 1136361408. Its totient is φ = 107573760.

The previous prime is 404622403. The next prime is 404622523. The reversal of 404622420 is 24226404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10215 + ... + 30225.

It is an arithmetic number, because the mean of its divisors is an integer number (23674196).

Almost surely, 2^404622420 is an apocalyptic number.

It is an amenable number.

404622420 is an abundant number, since it is smaller than the sum of its proper divisors (731738988).

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

404622420 is a wasteful number, since it uses less digits than its factorization.

404622420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20360 (or 20358 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 404622420 is about 20115.2285594770. The cubic root of 404622420 is about 739.6336267714.

Adding to 404622420 its reverse (24226404), we get a palindrome (428848824).

The spelling of 404622420 in words is "four hundred four million, six hundred twenty-two thousand, four hundred twenty".