2169159340 has 24 divisors (see below), whose sum is σ = 4619395872. Its totient is φ = 855442560.

The previous prime is 2169159331. The next prime is 2169159341. The reversal of 2169159340 is 439519612.

It is a junction number, because it is equal to n+sod(n) for n = 2169159293 and 2169159302.

It is not an unprimeable number, because it can be changed into a prime (2169159341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 762369 + ... + 765208.

It is an arithmetic number, because the mean of its divisors is an integer number (192474828).

Almost surely, 2^2169159340 is an apocalyptic number.

2169159340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2169159340 is an abundant number, since it is smaller than the sum of its proper divisors (2450236532).

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

2169159340 is a wasteful number, since it uses less digits than its factorization.

2169159340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527657 (or 1527655 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 2169159340 is about 46574.2347226447. The cubic root of 2169159340 is about 1294.4853855845.

The spelling of 2169159340 in words is "two billion, one hundred sixty-nine million, one hundred fifty-nine thousand, three hundred forty".