420022600 has 24 divisors (see below), whose sum is σ = 976553010. Its totient is φ = 168008960.

The previous prime is 420022591. The next prime is 420022601. The reversal of 420022600 is 6220024.

It can be written as a sum of positive squares in 3 ways, for example, as 361988676 + 58033924 = 19026^2 + 7618^2 .

It is not an unprimeable number, because it can be changed into a prime (420022601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1049857 + ... + 1050256.

Almost surely, 2^420022600 is an apocalyptic number.

420022600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420022600 is an abundant number, since it is smaller than the sum of its proper divisors (556530410).

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

420022600 is a wasteful number, since it uses less digits than its factorization.

420022600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100129 (or 2100120 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 420022600 is about 20494.4529080432. The cubic root of 420022600 is about 748.9006709028.

Adding to 420022600 its reverse (6220024), we get a palindrome (426242624).

The spelling of 420022600 in words is "four hundred twenty million, twenty-two thousand, six hundred".