1440031442 has 8 divisors (see below), whose sum is σ = 2160209136. Its totient is φ = 719961732.

The previous prime is 1440031441. The next prime is 1440031457. The reversal of 1440031442 is 2441300441.

It is a happy number.

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 (1440031441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33113 + ... + 63059.

It is an arithmetic number, because the mean of its divisors is an integer number (270026142).

Almost surely, 2^1440031442 is an apocalyptic number.

1440031442 is a deficient number, since it is larger than the sum of its proper divisors (720177694).

1440031442 is a wasteful number, since it uses less digits than its factorization.

1440031442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53992.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1440031442 is about 37947.7462044849. The cubic root of 1440031442 is about 1129.2514535015.

Adding to 1440031442 its reverse (2441300441), we get a palindrome (3881331883).

The spelling of 1440031442 in words is "one billion, four hundred forty million, thirty-one thousand, four hundred forty-two".