159740490 has 144 divisors (see below), whose sum is σ = 483664608. Its totient is φ = 33651072.

The previous prime is 159740459. The next prime is 159740501. The reversal of 159740490 is 94047951.

159740490 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 (39).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 248109 + ... + 248751.

It is an arithmetic number, because the mean of its divisors is an integer number (3358782).

Almost surely, 2^159740490 is an apocalyptic number.

159740490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 159740490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241832304).

159740490 is an abundant number, since it is smaller than the sum of its proper divisors (323924118).

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

159740490 is a wasteful number, since it uses less digits than its factorization.

159740490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 159740490 is about 12638.8484443797. The cubic root of 159740490 is about 542.5898567772.

The spelling of 159740490 in words is "one hundred fifty-nine million, seven hundred forty thousand, four hundred ninety".