1442459894 has 16 divisors (see below), whose sum is σ = 2319969600. Its totient is φ = 670210944.

The previous prime is 1442459891. The next prime is 1442459899. The reversal of 1442459894 is 4989542441.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 265829 + ... + 271200.

It is an arithmetic number, because the mean of its divisors is an integer number (144998100).

Almost surely, 2^1442459894 is an apocalyptic number.

1442459894 is a deficient number, since it is larger than the sum of its proper divisors (877509706).

1442459894 is a wasteful number, since it uses less digits than its factorization.

1442459894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537127.

The product of its digits is 1658880, while the sum is 50.

The square root of 1442459894 is about 37979.7300411680. The cubic root of 1442459894 is about 1129.8858824377.

The spelling of 1442459894 in words is "one billion, four hundred forty-two million, four hundred fifty-nine thousand, eight hundred ninety-four".