40159860 has 48 divisors (see below), whose sum is σ = 121099776. Its totient is φ = 9885312.

The previous prime is 40159859. The next prime is 40159871. The reversal of 40159860 is 6895104.

It is a super-2 number, since 2×40159860² = 3225628710439200, which contains 22 as substring.

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, 24964 + ... + 26523.

It is an arithmetic number, because the mean of its divisors is an integer number (2522912).

Almost surely, 2^40159860 is an apocalyptic number.

It is an amenable number.

40159860 is an abundant number, since it is smaller than the sum of its proper divisors (80939916).

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

40159860 is a wasteful number, since it uses less digits than its factorization.

40159860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51512 (or 51510 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 40159860 is about 6337.1807611903. The cubic root of 40159860 is about 342.4501783428.

The spelling of 40159860 in words is "forty million, one hundred fifty-nine thousand, eight hundred sixty".