1440023234 has 8 divisors (see below), whose sum is σ = 2326191420. Its totient is φ = 664626096.

The previous prime is 1440023201. The next prime is 1440023237. The reversal of 1440023234 is 4323200441.

It can be written as a sum of positive squares in 2 ways, for example, as 1433758225 + 6265009 = 37865^2 + 2503^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1440023237) by changing a digit.

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, 27692729 + ... + 27692780.

Almost surely, 2^1440023234 is an apocalyptic number.

1440023234 is a deficient number, since it is larger than the sum of its proper divisors (886168186).

1440023234 is a wasteful number, since it uses less digits than its factorization.

1440023234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55385524.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1440023234 is about 37947.6380556155. The cubic root of 1440023234 is about 1129.2493079665.

Adding to 1440023234 its reverse (4323200441), we get a palindrome (5763223675).

The spelling of 1440023234 in words is "one billion, four hundred forty million, twenty-three thousand, two hundred thirty-four".