404722120 has 32 divisors (see below), whose sum is σ = 993409920. Its totient is φ = 147171520.

The previous prime is 404722117. The next prime is 404722127. The reversal of 404722120 is 21227404.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 404722091 and 404722100.

It is not an unprimeable number, because it can be changed into a prime (404722127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459472 + ... + 460351.

It is an arithmetic number, because the mean of its divisors is an integer number (31044060).

Almost surely, 2^404722120 is an apocalyptic number.

404722120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404722120 is an abundant number, since it is smaller than the sum of its proper divisors (588687800).

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

404722120 is a wasteful number, since it uses less digits than its factorization.

404722120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919845 (or 919841 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 404722120 is about 20117.7066287388. The cubic root of 404722120 is about 739.6943709888.

Adding to 404722120 its reverse (21227404), we get a palindrome (425949524).

The spelling of 404722120 in words is "four hundred four million, seven hundred twenty-two thousand, one hundred twenty".