423221412 has 24 divisors (see below), whose sum is σ = 988243200. Its totient is φ = 140970016.

The previous prime is 423221353. The next prime is 423221419. The reversal of 423221412 is 214122324.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (423221419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5014 + ... + 29522.

It is an arithmetic number, because the mean of its divisors is an integer number (41176800).

Almost surely, 2^423221412 is an apocalyptic number.

It is an amenable number.

423221412 is an abundant number, since it is smaller than the sum of its proper divisors (565021788).

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

423221412 is a wasteful number, since it uses less digits than its factorization.

423221412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25955 (or 25953 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 423221412 is about 20572.3458069322. The cubic root of 423221412 is about 750.7970264761.

Adding to 423221412 its reverse (214122324), we get a palindrome (637343736).

It can be divided in two parts, 42322 and 1412, that added together give a palindrome (43734).

The spelling of 423221412 in words is "four hundred twenty-three million, two hundred twenty-one thousand, four hundred twelve".