244402420 has 24 divisors (see below), whose sum is σ = 513967104. Its totient is φ = 97623456.

The previous prime is 244402391. The next prime is 244402493. The reversal of 244402420 is 24204442.

It is a junction number, because it is equal to n+sod(n) for n = 244402391 and 244402400.

It is a congruent number.

It is an unprimeable number.

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, 6637 + ... + 23083.

It is an arithmetic number, because the mean of its divisors is an integer number (21415296).

Almost surely, 2^244402420 is an apocalyptic number.

244402420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244402420 is an abundant number, since it is smaller than the sum of its proper divisors (269564684).

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

244402420 is a wasteful number, since it uses less digits than its factorization.

244402420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17199 (or 17197 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 244402420 is about 15633.3751953953. The cubic root of 244402420 is about 625.2233185966.

Adding to 244402420 its reverse (24204442), we get a palindrome (268606862).

The spelling of 244402420 in words is "two hundred forty-four million, four hundred two thousand, four hundred twenty".