420445113 has 12 divisors (see below), whose sum is σ = 616190064. Its totient is φ = 254815000.

The previous prime is 420445093. The next prime is 420445133. The reversal of 420445113 is 311544024.

It is an interprime number because it is at equal distance from previous prime (420445093) and next prime (420445133).

It is not a de Polignac number, because 420445113 - 2¹⁸ = 420182969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420445133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 578763 + ... + 579488.

It is an arithmetic number, because the mean of its divisors is an integer number (51349172).

Almost surely, 2^420445113 is an apocalyptic number.

It is an amenable number.

420445113 is a deficient number, since it is larger than the sum of its proper divisors (195744951).

420445113 is a wasteful number, since it uses less digits than its factorization.

420445113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158276 (or 1158265 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 420445113 is about 20504.7583014285. The cubic root of 420445113 is about 749.1517004344.

Adding to 420445113 its reverse (311544024), we get a palindrome (731989137).

The spelling of 420445113 in words is "four hundred twenty million, four hundred forty-five thousand, one hundred thirteen".