423015372 has 84 divisors (see below), whose sum is σ = 1195392240. Its totient is φ = 130146912.

The previous prime is 423015361. The next prime is 423015377. The reversal of 423015372 is 273510324.

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 (423015377) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 32329 + ... + 43487.

It is an arithmetic number, because the mean of its divisors is an integer number (14230860).

Almost surely, 2^423015372 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 423015372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (597696120).

423015372 is an abundant number, since it is smaller than the sum of its proper divisors (772376868).

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

423015372 is a wasteful number, since it uses less digits than its factorization.

423015372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11194 (or 11177 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 423015372 is about 20567.3375039163. The cubic root of 423015372 is about 750.6751680151.

Adding to 423015372 its reverse (273510324), we get a palindrome (696525696).

The spelling of 423015372 in words is "four hundred twenty-three million, fifteen thousand, three hundred seventy-two".