1440550442 has 8 divisors (see below), whose sum is σ = 2179948356. Its totient is φ = 713900992.

The previous prime is 1440550427. The next prime is 1440550487. The reversal of 1440550442 is 2440550441.

It can be written as a sum of positive squares in 2 ways, for example, as 1322849641 + 117700801 = 36371^2 + 10849^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3186833 + ... + 3187284.

Almost surely, 2^1440550442 is an apocalyptic number.

1440550442 is a deficient number, since it is larger than the sum of its proper divisors (739397914).

1440550442 is a wasteful number, since it uses less digits than its factorization.

1440550442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6374232.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 1440550442 is about 37954.5839392293. The cubic root of 1440550442 is about 1129.3871012593.

Subtracting 1440550442 from its reverse (2440550441), we obtain a palindrome (999999999).

The spelling of 1440550442 in words is "one billion, four hundred forty million, five hundred fifty thousand, four hundred forty-two".