423207180 has 360 divisors, whose sum is σ = 1557287424. Its totient is φ = 95800320.

The previous prime is 423207137. The next prime is 423207181. The reversal of 423207180 is 81702324.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (423207181) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 3332277 + ... + 3332403.

Almost surely, 2^423207180 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423207180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (778643712).

423207180 is an abundant number, since it is smaller than the sum of its proper divisors (1134080244).

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

423207180 is a wasteful number, since it uses less digits than its factorization.

423207180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 423207180 is about 20571.9999027805. Note that the first 4 decimals coincide. The cubic root of 423207180 is about 750.7886105007.

The spelling of 423207180 in words is "four hundred twenty-three million, two hundred seven thousand, one hundred eighty".