1423489859 has 16 divisors (see below), whose sum is σ = 1581383520. Its totient is φ = 1281148000.

The previous prime is 1423489843. The next prime is 1423489891. The reversal of 1423489859 is 9589843241.

It is not a de Polignac number, because 1423489859 - 2⁴ = 1423489843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1423489859.

It is not an unprimeable number, because it can be changed into a prime (1423489819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129137 + ... + 139725.

It is an arithmetic number, because the mean of its divisors is an integer number (98836470).

Almost surely, 2^1423489859 is an apocalyptic number.

1423489859 is a deficient number, since it is larger than the sum of its proper divisors (157893661).

1423489859 is a wasteful number, since it uses less digits than its factorization.

1423489859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10723 (or 10701 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 53.

The square root of 1423489859 is about 37729.1645680102. The cubic root of 1423489859 is about 1124.9109023101.

The spelling of 1423489859 in words is "one billion, four hundred twenty-three million, four hundred eighty-nine thousand, eight hundred fifty-nine".