1442042531 has 8 divisors (see below), whose sum is σ = 1502475264. Its totient is φ = 1382479560.

The previous prime is 1442042519. The next prime is 1442042543. The reversal of 1442042531 is 1352402441.

It is an interprime number because it is at equal distance from previous prime (1442042519) and next prime (1442042543).

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

It is a cyclic number.

It is not a de Polignac number, because 1442042531 - 2²² = 1437848227 is a prime.

It is a super-2 number, since 2×1442042531² = 4158973322425771922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1442042531.

It is not an unprimeable number, because it can be changed into a prime (1442042131) 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, 214055 + ... + 220688.

It is an arithmetic number, because the mean of its divisors is an integer number (187809408).

Almost surely, 2^1442042531 is an apocalyptic number.

1442042531 is a deficient number, since it is larger than the sum of its proper divisors (60432733).

1442042531 is a wasteful number, since it uses less digits than its factorization.

1442042531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434881.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1442042531 is about 37974.2350943373. The cubic root of 1442042531 is about 1129.7768977668.

Adding to 1442042531 its reverse (1352402441), we get a palindrome (2794444972).

The spelling of 1442042531 in words is "one billion, four hundred forty-two million, forty-two thousand, five hundred thirty-one".