1489423281 has 16 divisors (see below), whose sum is σ = 2108927040. Its totient is φ = 932359680.

The previous prime is 1489423223. The next prime is 1489423283. The reversal of 1489423281 is 1823249841.

1489423281 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1489423281 - 2¹⁹ = 1488898993 is a prime.

It is a super-2 number, since 2×1489423281² = 4436763419969609922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1489423283) 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, 109180 + ... + 122061.

It is an arithmetic number, because the mean of its divisors is an integer number (131807940).

Almost surely, 2^1489423281 is an apocalyptic number.

It is an amenable number.

1489423281 is a deficient number, since it is larger than the sum of its proper divisors (619503759).

1489423281 is a wasteful number, since it uses less digits than its factorization.

1489423281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231376.

The product of its digits is 110592, while the sum is 42.

The square root of 1489423281 is about 38593.0470551368. The cubic root of 1489423281 is about 1142.0173781736.

The spelling of 1489423281 in words is "one billion, four hundred eighty-nine million, four hundred twenty-three thousand, two hundred eighty-one".