1423234240 has 28 divisors (see below), whose sum is σ = 3389077296. Its totient is φ = 569293568.

The previous prime is 1423234229. The next prime is 1423234259. The reversal of 1423234240 is 424323241.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2223484 + ... + 2224123.

Almost surely, 2^1423234240 is an apocalyptic number.

1423234240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423234240 is an abundant number, since it is smaller than the sum of its proper divisors (1965843056).

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

1423234240 is an equidigital number, since it uses as much as digits as its factorization.

1423234240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4447624 (or 4447614 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 1423234240 is about 37725.7768641018. The cubic root of 1423234240 is about 1124.8435640916.

Adding to 1423234240 its reverse (424323241), we get a palindrome (1847557481).

The spelling of 1423234240 in words is "one billion, four hundred twenty-three million, two hundred thirty-four thousand, two hundred forty".