159433920 has 140 divisors (see below), whose sum is σ = 567226704. Its totient is φ = 42508800.

The previous prime is 159433919. The next prime is 159433957. The reversal of 159433920 is 29334951.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22845 + ... + 28995.

Almost surely, 2^159433920 is an apocalyptic number.

159433920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 159433920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283613352).

159433920 is an abundant number, since it is smaller than the sum of its proper divisors (407792784).

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

159433920 is an equidigital number, since it uses as much as digits as its factorization.

159433920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6180 (or 6161 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 159433920 is about 12626.7145370441. The cubic root of 159433920 is about 542.2425261391.

The spelling of 159433920 in words is "one hundred fifty-nine million, four hundred thirty-three thousand, nine hundred twenty".