1442240031 has 8 divisors (see below), whose sum is σ = 1923197440. Its totient is φ = 961387992.

The previous prime is 1442240029. The next prime is 1442240039. The reversal of 1442240031 is 1300422441.

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

It is not a de Polignac number, because 1442240031 - 2¹ = 1442240029 is a prime.

It is a super-3 number, since 3×1442240031³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442240039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14760 + ... + 55698.

It is an arithmetic number, because the mean of its divisors is an integer number (240399680).

Almost surely, 2^1442240031 is an apocalyptic number.

1442240031 is a deficient number, since it is larger than the sum of its proper divisors (480957409).

1442240031 is a wasteful number, since it uses less digits than its factorization.

1442240031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52685.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1442240031 is about 37976.8354526809. The cubic root of 1442240031 is about 1129.8284729334.

Adding to 1442240031 its reverse (1300422441), we get a palindrome (2742662472).

The spelling of 1442240031 in words is "one billion, four hundred forty-two million, two hundred forty thousand, thirty-one".