159016440 has 128 divisors (see below), whose sum is σ = 524102400. Its totient is φ = 38277120.

The previous prime is 159016433. The next prime is 159016469. The reversal of 159016440 is 44610951.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 159016398 and 159016407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235944 + ... + 236616.

It is an arithmetic number, because the mean of its divisors is an integer number (4094550).

Almost surely, 2^159016440 is an apocalyptic number.

159016440 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 159016440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262051200).

159016440 is an abundant number, since it is smaller than the sum of its proper divisors (365085960).

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

159016440 is a wasteful number, since it uses less digits than its factorization.

159016440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877 (or 873 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 159016440 is about 12610.1720844721. The cubic root of 159016440 is about 541.7688224947.

The spelling of 159016440 in words is "one hundred fifty-nine million, sixteen thousand, four hundred forty".