1423452228 has 72 divisors (see below), whose sum is σ = 3865601376. Its totient is φ = 405968640.

The previous prime is 1423452179. The next prime is 1423452229. The reversal of 1423452228 is 8222543241.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1423452229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4150 + ... + 53517.

It is an arithmetic number, because the mean of its divisors is an integer number (53688908).

Almost surely, 2^1423452228 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 1423452228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1932800688).

1423452228 is an abundant number, since it is smaller than the sum of its proper divisors (2442149148).

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

1423452228 is a wasteful number, since it uses less digits than its factorization.

1423452228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57713 (or 57700 counting only the distinct ones).

The product of its digits is 30720, while the sum is 33.

The square root of 1423452228 is about 37728.6658656253. The cubic root of 1423452228 is about 1124.9009896074.

Adding to 1423452228 its reverse (8222543241), we get a palindrome (9645995469).

The spelling of 1423452228 in words is "one billion, four hundred twenty-three million, four hundred fifty-two thousand, two hundred twenty-eight".