2169828154 has 8 divisors (see below), whose sum is σ = 3505107060. Its totient is φ = 1001459136.

The previous prime is 2169828149. The next prime is 2169828209. The reversal of 2169828154 is 4518289612.

It can be written as a sum of positive squares in 2 ways, for example, as 2169230625 + 597529 = 46575^2 + 773^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41727439 + ... + 41727490.

Almost surely, 2^2169828154 is an apocalyptic number.

2169828154 is a deficient number, since it is larger than the sum of its proper divisors (1335278906).

2169828154 is a wasteful number, since it uses less digits than its factorization.

2169828154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83454944.

The product of its digits is 276480, while the sum is 46.

The square root of 2169828154 is about 46581.4142550438. The cubic root of 2169828154 is about 1294.6184142295.

The spelling of 2169828154 in words is "two billion, one hundred sixty-nine million, eight hundred twenty-eight thousand, one hundred fifty-four".