423122500 has 30 divisors (see below), whose sum is σ = 925289750. Its totient is φ = 169248000.

The previous prime is 423122489. The next prime is 423122521. The reversal of 423122500 is 5221324.

It can be written as a sum of positive squares in 5 ways, for example, as 73582084 + 349540416 = 8578^2 + 18696^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 82125 + ... + 87124.

Almost surely, 2^423122500 is an apocalyptic number.

It is an amenable number.

423122500 is an abundant number, since it is smaller than the sum of its proper divisors (502167250).

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

423122500 is a wasteful number, since it uses less digits than its factorization.

423122500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169273 (or 169256 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 423122500 is about 20569.9416625327. The cubic root of 423122500 is about 750.7385317816.

Adding to 423122500 its reverse (5221324), we get a palindrome (428343824).

The spelling of 423122500 in words is "four hundred twenty-three million, one hundred twenty-two thousand, five hundred".