420620264 has 16 divisors (see below), whose sum is σ = 790749600. Its totient is φ = 209753712.

The previous prime is 420620261. The next prime is 420620267. The reversal of 420620264 is 462026024.

It is an interprime number because it is at equal distance from previous prime (420620261) and next prime (420620267).

It is not an unprimeable number, because it can be changed into a prime (420620261) 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 3 ways as a sum of consecutive naturals, for example, 66332 + ... + 72395.

It is an arithmetic number, because the mean of its divisors is an integer number (49421850).

Almost surely, 2^420620264 is an apocalyptic number.

It is an amenable number.

420620264 is a deficient number, since it is larger than the sum of its proper divisors (370129336).

420620264 is a wasteful number, since it uses less digits than its factorization.

420620264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139112 (or 139108 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 420620264 is about 20509.0288409764. The cubic root of 420620264 is about 749.2557143703.

Adding to 420620264 its reverse (462026024), we get a palindrome (882646288).

The spelling of 420620264 in words is "four hundred twenty million, six hundred twenty thousand, two hundred sixty-four".