159420240 has 240 divisors, whose sum is σ = 625817088. Its totient is φ = 35610624.

The previous prime is 159420227. The next prime is 159420277. The reversal of 159420240 is 42024951.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

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, 236544 + ... + 237216.

Almost surely, 2^159420240 is an apocalyptic number.

159420240 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 159420240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312908544).

159420240 is an abundant number, since it is smaller than the sum of its proper divisors (466396848).

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

159420240 is a wasteful number, since it uses less digits than its factorization.

159420240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 159420240 is about 12626.1728168119. The cubic root of 159420240 is about 542.2270169134.

The spelling of 159420240 in words is "one hundred fifty-nine million, four hundred twenty thousand, two hundred forty".