159299440 has 20 divisors (see below), whose sum is σ = 370371384. Its totient is φ = 63719744.

The previous prime is 159299431. The next prime is 159299443. The reversal of 159299440 is 44992951.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159299443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 995542 + ... + 995701.

Almost surely, 2^159299440 is an apocalyptic number.

159299440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159299440 is an abundant number, since it is smaller than the sum of its proper divisors (211071944).

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

159299440 is a wasteful number, since it uses less digits than its factorization.

159299440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991256 (or 1991250 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 159299440 is about 12621.3881962326. The cubic root of 159299440 is about 542.0900255774.

The spelling of 159299440 in words is "one hundred fifty-nine million, two hundred ninety-nine thousand, four hundred forty".