423210100 has 18 divisors (see below), whose sum is σ = 918366134. Its totient is φ = 169284000.

The previous prime is 423210089. The next prime is 423210173. The reversal of 423210100 is 1012324.

It can be written as a sum of positive squares in 3 ways, for example, as 2916 + 423207184 = 54^2 + 20572^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2115951 + ... + 2116150.

Almost surely, 2^423210100 is an apocalyptic number.

It is an amenable number.

423210100 is an abundant number, since it is smaller than the sum of its proper divisors (495156034).

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

423210100 is a wasteful number, since it uses less digits than its factorization.

423210100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4232115 (or 4232108 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 423210100 is about 20572.0708729092. The cubic root of 423210100 is about 750.7903372339.

Adding to 423210100 its reverse (1012324), we get a palindrome (424222424).

The spelling of 423210100 in words is "four hundred twenty-three million, two hundred ten thousand, one hundred".