159449040 has 80 divisors (see below), whose sum is σ = 549220800. Its totient is φ = 42519168.

The previous prime is 159449039. The next prime is 159449053. The reversal of 159449040 is 40944951.

It is a happy number.

159449040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 159448986 and 159449004.

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, 34750 + ... + 39069.

It is an arithmetic number, because the mean of its divisors is an integer number (6865260).

Almost surely, 2^159449040 is an apocalyptic number.

159449040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159449040 is an abundant number, since it is smaller than the sum of its proper divisors (389771760).

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

159449040 is a wasteful number, since it uses less digits than its factorization.

159449040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73841 (or 73829 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 159449040 is about 12627.3132534201. The cubic root of 159449040 is about 542.2596668827.

The spelling of 159449040 in words is "one hundred fifty-nine million, four hundred forty-nine thousand, forty".