159394320 has 120 divisors (see below), whose sum is σ = 545529816. Its totient is φ = 41693184.

The previous prime is 159394247. The next prime is 159394321. The reversal of 159394320 is 23493951.

It is a happy number.

159394320 is a `hidden beast` number, since 1 + 593 + 9 + 43 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 64448784 + 94945536 = 8028^2 + 9744^2 .

It is a tau number, because it is divible by the number of its divisors (120).

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

It is not an unprimeable number, because it can be changed into a prime (159394321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36072 + ... + 40248.

Almost surely, 2^159394320 is an apocalyptic number.

159394320 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 159394320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272764908).

159394320 is an abundant number, since it is smaller than the sum of its proper divisors (386135496).

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

159394320 is a wasteful number, since it uses less digits than its factorization.

159394320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4249 (or 4240 counting only the distinct ones).

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

The square root of 159394320 is about 12625.1463357856. The cubic root of 159394320 is about 542.1976285788.

The spelling of 159394320 in words is "one hundred fifty-nine million, three hundred ninety-four thousand, three hundred twenty".