2179389072 has 160 divisors (see below), whose sum is σ = 6912256000. Its totient is φ = 589825152.

The previous prime is 2179389031. The next prime is 2179389083. The reversal of 2179389072 is 2709839712.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309333 + ... + 316299.

It is an arithmetic number, because the mean of its divisors is an integer number (43201600).

Almost surely, 2^2179389072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2179389072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3456128000).

2179389072 is an abundant number, since it is smaller than the sum of its proper divisors (4732866928).

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

2179389072 is a wasteful number, since it uses less digits than its factorization.

2179389072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7018 (or 6998 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 2179389072 is about 46683.9273412167. The cubic root of 2179389072 is about 1296.5171214043.

The spelling of 2179389072 in words is "two billion, one hundred seventy-nine million, three hundred eighty-nine thousand, seventy-two".