43159878 has 40 divisors (see below), whose sum is σ = 97173648. Its totient is φ = 14317776.

The previous prime is 43159873. The next prime is 43159901. The reversal of 43159878 is 87895134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43159873) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 42100 + ... + 43112.

Almost surely, 2^43159878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43159878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48586824).

43159878 is an abundant number, since it is smaller than the sum of its proper divisors (54013770).

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

43159878 is a wasteful number, since it uses less digits than its factorization.

43159878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290 (or 1281 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 43159878 is about 6569.6177971021. The cubic root of 43159878 is about 350.7734676800.

The spelling of 43159878 in words is "forty-three million, one hundred fifty-nine thousand, eight hundred seventy-eight".