420003264 has 28 divisors (see below), whose sum is σ = 1111259144. Its totient is φ = 140001024.

The previous prime is 420003257. The next prime is 420003281. The reversal of 420003264 is 462300024.

It is a self number, because there is not a number n which added to its sum of digits gives 420003264.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1093567 + ... + 1093950.

Almost surely, 2^420003264 is an apocalyptic number.

It is an amenable number.

420003264 is an abundant number, since it is smaller than the sum of its proper divisors (691255880).

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

420003264 is a wasteful number, since it uses less digits than its factorization.

420003264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187532 (or 2187522 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 420003264 is about 20493.9811652104. The cubic root of 420003264 is about 748.8891786914.

Adding to 420003264 its reverse (462300024), we get a palindrome (882303288).

The spelling of 420003264 in words is "four hundred twenty million, three thousand, two hundred sixty-four".