1423400224 has 24 divisors (see below), whose sum is σ = 2855196540. Its totient is φ = 698270976.

The previous prime is 1423400221. The next prime is 1423400267. The reversal of 1423400224 is 4220043241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1373443600 + 49956624 = 37060^2 + 7068^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1423400195 and 1423400204.

It is not an unprimeable number, because it can be changed into a prime (1423400221) 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, 417939 + ... + 421330.

Almost surely, 2^1423400224 is an apocalyptic number.

It is an amenable number.

1423400224 is an abundant number, since it is smaller than the sum of its proper divisors (1431796316).

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

1423400224 is an equidigital number, since it uses as much as digits as its factorization.

1423400224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839332 (or 839324 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1423400224 is about 37727.9766751412. The cubic root of 1423400224 is about 1124.8872905027.

Adding to 1423400224 its reverse (4220043241), we get a palindrome (5643443465).

The spelling of 1423400224 in words is "one billion, four hundred twenty-three million, four hundred thousand, two hundred twenty-four".