1442459893 has 12 divisors (see below), whose sum is σ = 1693363980. Its totient is φ = 1225046592.

The previous prime is 1442459891. The next prime is 1442459899. The reversal of 1442459893 is 3989542441.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 778521604 + 663938289 = 27902^2 + 25767^2 .

It is not a de Polignac number, because 1442459893 - 2¹ = 1442459891 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442459891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129696 + ... + 140377.

It is an arithmetic number, because the mean of its divisors is an integer number (141113665).

Almost surely, 2^1442459893 is an apocalyptic number.

It is an amenable number.

1442459893 is a deficient number, since it is larger than the sum of its proper divisors (250904087).

1442459893 is a wasteful number, since it uses less digits than its factorization.

1442459893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270196 (or 270189 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 49.

The square root of 1442459893 is about 37979.7300280031. The cubic root of 1442459893 is about 1129.8858821766.

The spelling of 1442459893 in words is "one billion, four hundred forty-two million, four hundred fifty-nine thousand, eight hundred ninety-three".