159623420 has 48 divisors (see below), whose sum is σ = 366938208. Its totient is φ = 57845760.

The previous prime is 159623411. The next prime is 159623437. The reversal of 159623420 is 24326951.

It is a happy number.

159623420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73064 + ... + 75216.

It is an arithmetic number, because the mean of its divisors is an integer number (7644546).

Almost surely, 2^159623420 is an apocalyptic number.

159623420 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 159623420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183469104).

159623420 is an abundant number, since it is smaller than the sum of its proper divisors (207314788).

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

159623420 is a wasteful number, since it uses less digits than its factorization.

159623420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510 (or 2508 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 159623420 is about 12634.2162400364. The cubic root of 159623420 is about 542.4572739893.

The spelling of 159623420 in words is "one hundred fifty-nine million, six hundred twenty-three thousand, four hundred twenty".