420304044 has 24 divisors (see below), whose sum is σ = 981344448. Its totient is φ = 140010640.

The previous prime is 420304043. The next prime is 420304069. The reversal of 420304044 is 440403024.

It is a self number, because there is not a number n which added to its sum of digits gives 420304044.

It is not an unprimeable number, because it can be changed into a prime (420304043) 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, 9499 + ... + 30509.

It is an arithmetic number, because the mean of its divisors is an integer number (40889352).

Almost surely, 2^420304044 is an apocalyptic number.

It is an amenable number.

420304044 is an abundant number, since it is smaller than the sum of its proper divisors (561040404).

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

420304044 is a wasteful number, since it uses less digits than its factorization.

420304044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22685 (or 22683 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 420304044 is about 20501.3181039659. The cubic root of 420304044 is about 749.0679051900.

Adding to 420304044 its reverse (440403024), we get a palindrome (860707068).

The spelling of 420304044 in words is "four hundred twenty million, three hundred four thousand, forty-four".