1440366442 has 8 divisors (see below), whose sum is σ = 2210795136. Its totient is φ = 703434732.

The previous prime is 1440366413. The next prime is 1440366443. The reversal of 1440366442 is 2446630441.

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

It is a junction number, because it is equal to n+sod(n) for n = 1440366398 and 1440366407.

It is not an unprimeable number, because it can be changed into a prime (1440366443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8374138 + ... + 8374309.

It is an arithmetic number, because the mean of its divisors is an integer number (276349392).

Almost surely, 2^1440366442 is an apocalyptic number.

1440366442 is a deficient number, since it is larger than the sum of its proper divisors (770428694).

1440366442 is a wasteful number, since it uses less digits than its factorization.

1440366442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16748492.

The product of its (nonzero) digits is 55296, while the sum is 34.

The square root of 1440366442 is about 37952.1599121842. The cubic root of 1440366442 is about 1129.3390140678.

Adding to 1440366442 its reverse (2446630441), we get a palindrome (3886996883).

The spelling of 1440366442 in words is "one billion, four hundred forty million, three hundred sixty-six thousand, four hundred forty-two".