2180379792 has 80 divisors (see below), whose sum is σ = 5839626240. Its totient is φ = 700291200.

The previous prime is 2180379787. The next prime is 2180379793. The reversal of 2180379792 is 2979730812.

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

It is not an unprimeable number, because it can be changed into a prime (2180379793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352567 + ... + 358697.

It is an arithmetic number, because the mean of its divisors is an integer number (72995328).

Almost surely, 2^2180379792 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 2180379792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2919813120).

2180379792 is an abundant number, since it is smaller than the sum of its proper divisors (3659246448).

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

2180379792 is a wasteful number, since it uses less digits than its factorization.

2180379792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6412 (or 6406 counting only the distinct ones).

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

The square root of 2180379792 is about 46694.5370680554. The cubic root of 2180379792 is about 1296.7135512008.

The spelling of 2180379792 in words is "two billion, one hundred eighty million, three hundred seventy-nine thousand, seven hundred ninety-two".