159744780 has 144 divisors (see below), whose sum is σ = 549450720. Its totient is φ = 37241856.

The previous prime is 159744779. The next prime is 159744803. The reversal of 159744780 is 87447951.

It is a happy number.

159744780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42664 + ... + 46256.

It is an arithmetic number, because the mean of its divisors is an integer number (3815630).

Almost surely, 2^159744780 is an apocalyptic number.

159744780 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 159744780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274725360).

159744780 is an abundant number, since it is smaller than the sum of its proper divisors (389705940).

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

159744780 is a wasteful number, since it uses less digits than its factorization.

159744780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3640 (or 3635 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 159744780 is about 12639.0181580691. The cubic root of 159744780 is about 542.5947140088.

The spelling of 159744780 in words is "one hundred fifty-nine million, seven hundred forty-four thousand, seven hundred eighty".