423223120 has 20 divisors (see below), whose sum is σ = 983993940. Its totient is φ = 169289216.

The previous prime is 423223117. The next prime is 423223123. The reversal of 423223120 is 21322324.

It is an interprime number because it is at equal distance from previous prime (423223117) and next prime (423223123).

It can be written as a sum of positive squares in 2 ways, for example, as 336062224 + 87160896 = 18332^2 + 9336^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423223123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2645065 + ... + 2645224.

It is an arithmetic number, because the mean of its divisors is an integer number (49199697).

Almost surely, 2^423223120 is an apocalyptic number.

423223120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423223120 is an abundant number, since it is smaller than the sum of its proper divisors (560770820).

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

423223120 is a wasteful number, since it uses less digits than its factorization.

423223120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5290302 (or 5290296 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 423223120 is about 20572.3873189283. The cubic root of 423223120 is about 750.7980364751.

Adding to 423223120 its reverse (21322324), we get a palindrome (444545444).

The spelling of 423223120 in words is "four hundred twenty-three million, two hundred twenty-three thousand, one hundred twenty".