1440013442 has 8 divisors (see below), whose sum is σ = 2468594496. Its totient is φ = 617148612.

The previous prime is 1440013433. The next prime is 1440013483. The reversal of 1440013442 is 2443100441.

It is a happy number.

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, 51429038 + ... + 51429065.

It is an arithmetic number, because the mean of its divisors is an integer number (308574312).

Almost surely, 2^1440013442 is an apocalyptic number.

1440013442 is a deficient number, since it is larger than the sum of its proper divisors (1028581054).

1440013442 is a wasteful number, since it uses less digits than its factorization.

1440013442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102858112.

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

The square root of 1440013442 is about 37947.5090355085. The cubic root of 1440013442 is about 1129.2467483703.

Adding to 1440013442 its reverse (2443100441), we get a palindrome (3883113883).

The spelling of 1440013442 in words is "one billion, four hundred forty million, thirteen thousand, four hundred forty-two".