1440023332 has 12 divisors (see below), whose sum is σ = 2749135536. Its totient is φ = 654556040.

The previous prime is 1440023329. The next prime is 1440023339. The reversal of 1440023332 is 2333200441.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1440023339) 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, 16363858 + ... + 16363945.

It is an arithmetic number, because the mean of its divisors is an integer number (229094628).

Almost surely, 2^1440023332 is an apocalyptic number.

It is an amenable number.

1440023332 is a deficient number, since it is larger than the sum of its proper divisors (1309112204).

1440023332 is a wasteful number, since it uses less digits than its factorization.

1440023332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32727818 (or 32727816 counting only the distinct ones).

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

The square root of 1440023332 is about 37947.6393468685. The cubic root of 1440023332 is about 1129.2493335834.

Adding to 1440023332 its reverse (2333200441), we get a palindrome (3773223773).

The spelling of 1440023332 in words is "one billion, four hundred forty million, twenty-three thousand, three hundred thirty-two".