420244055 has 64 divisors (see below), whose sum is σ = 654151680. Its totient is φ = 251596800.

The previous prime is 420244051. The next prime is 420244057. The reversal of 420244055 is 550442024.

It is not a de Polignac number, because 420244055 - 2² = 420244051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420244051) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1246847 + ... + 1247183.

It is an arithmetic number, because the mean of its divisors is an integer number (10221120).

Almost surely, 2^420244055 is an apocalyptic number.

420244055 is a deficient number, since it is larger than the sum of its proper divisors (233907625).

420244055 is a wasteful number, since it uses less digits than its factorization.

420244055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 420244055 is about 20499.8549994872. The cubic root of 420244055 is about 749.0322659322.

Adding to 420244055 its reverse (550442024), we get a palindrome (970686079).

The spelling of 420244055 in words is "four hundred twenty million, two hundred forty-four thousand, fifty-five".