1489233918 has 16 divisors (see below), whose sum is σ = 3006305280. Its totient is φ = 491771736.

The previous prime is 1489233913. The next prime is 1489233947. The reversal of 1489233918 is 8193329841.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489233913) 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, 1159198 + ... + 1160481.

It is an arithmetic number, because the mean of its divisors is an integer number (187894080).

Almost surely, 2^1489233918 is an apocalyptic number.

1489233918 is an abundant number, since it is smaller than the sum of its proper divisors (1517071362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1489233918 is a wasteful number, since it uses less digits than its factorization.

1489233918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2319791.

The product of its digits is 373248, while the sum is 48.

The square root of 1489233918 is about 38590.5936466388. The cubic root of 1489233918 is about 1141.9689780076.

The spelling of 1489233918 in words is "one billion, four hundred eighty-nine million, two hundred thirty-three thousand, nine hundred eighteen".