1439960818 has 8 divisors (see below), whose sum is σ = 2160692460. Its totient is φ = 719730000.

The previous prime is 1439960813. The next prime is 1439960861. The reversal of 1439960818 is 8180699341.

It can be written as a sum of positive squares in 2 ways, for example, as 1401978249 + 37982569 = 37443^2 + 6163^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1439960813) 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, 117933 + ... + 129568.

Almost surely, 2^1439960818 is an apocalyptic number.

1439960818 is a deficient number, since it is larger than the sum of its proper divisors (720731642).

1439960818 is a wasteful number, since it uses less digits than its factorization.

1439960818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250412.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 1439960818 is about 37946.8156503283. The cubic root of 1439960818 is about 1129.2329924328.

The spelling of 1439960818 in words is "one billion, four hundred thirty-nine million, nine hundred sixty thousand, eight hundred eighteen".