420444122 has 16 divisors (see below), whose sum is σ = 758696640. Its totient is φ = 170706528.

The previous prime is 420444121. The next prime is 420444133. The reversal of 420444122 is 221444024.

It is not an unprimeable number, because it can be changed into a prime (420444121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 790043 + ... + 790574.

It is an arithmetic number, because the mean of its divisors is an integer number (47418540).

Almost surely, 2^420444122 is an apocalyptic number.

420444122 is a deficient number, since it is larger than the sum of its proper divisors (338252518).

420444122 is a wasteful number, since it uses less digits than its factorization.

420444122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580645.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 420444122 is about 20504.7341362916. The cubic root of 420444122 is about 749.1511118440.

Adding to 420444122 its reverse (221444024), we get a palindrome (641888146).

The spelling of 420444122 in words is "four hundred twenty million, four hundred forty-four thousand, one hundred twenty-two".