2179299138 has 8 divisors (see below), whose sum is σ = 4358598288. Its totient is φ = 726433044.

The previous prime is 2179299137. The next prime is 2179299169. The reversal of 2179299138 is 8319929712.

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

2179299138 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2179299137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181608256 + ... + 181608267.

It is an arithmetic number, because the mean of its divisors is an integer number (544824786).

Almost surely, 2^2179299138 is an apocalyptic number.

2179299138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2179299138 is a wasteful number, since it uses less digits than its factorization.

2179299138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363216528.

The product of its digits is 489888, while the sum is 51.

The square root of 2179299138 is about 46682.9641089766. The cubic root of 2179299138 is about 1296.4992872666.

The spelling of 2179299138 in words is "two billion, one hundred seventy-nine million, two hundred ninety-nine thousand, one hundred thirty-eight".