1489233478 has 8 divisors (see below), whose sum is σ = 2246763168. Its totient is φ = 740312424.

The previous prime is 1489233457. The next prime is 1489233479. The reversal of 1489233478 is 8743329841.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489233479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2151726 + ... + 2152417.

It is an arithmetic number, because the mean of its divisors is an integer number (280845396).

Almost surely, 2^1489233478 is an apocalyptic number.

1489233478 is a deficient number, since it is larger than the sum of its proper divisors (757529690).

1489233478 is a wasteful number, since it uses less digits than its factorization.

1489233478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304318.

The product of its digits is 1161216, while the sum is 49.

The square root of 1489233478 is about 38590.5879457673. The cubic root of 1489233478 is about 1141.9688655412.

The spelling of 1489233478 in words is "one billion, four hundred eighty-nine million, two hundred thirty-three thousand, four hundred seventy-eight".