1423330420 has 24 divisors (see below), whose sum is σ = 2992777704. Its totient is φ = 568611456.

The previous prime is 1423330409. The next prime is 1423330427. The reversal of 1423330420 is 240333241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3849444 + 1419480976 = 1962^2 + 37676^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1423330391 and 1423330400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423330427) 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, 28707 + ... + 60586.

It is an arithmetic number, because the mean of its divisors is an integer number (124699071).

Almost surely, 2^1423330420 is an apocalyptic number.

1423330420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423330420 is an abundant number, since it is smaller than the sum of its proper divisors (1569447284).

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

1423330420 is a wasteful number, since it uses less digits than its factorization.

1423330420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90099 (or 90097 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 1423330420 is about 37727.0515678074. The cubic root of 1423330420 is about 1124.8689019252.

Adding to 1423330420 its reverse (240333241), we get a palindrome (1663663661).

The spelling of 1423330420 in words is "one billion, four hundred twenty-three million, three hundred thirty thousand, four hundred twenty".