2179378960 has 40 divisors (see below), whose sum is σ = 5527699776. Its totient is φ = 792501120.

The previous prime is 2179378939. The next prime is 2179378963. The reversal of 2179378960 is 698739712.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2179378898 and 2179378907.

It is not an unprimeable number, because it can be changed into a prime (2179378963) 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, 1237404 + ... + 1239163.

Almost surely, 2^2179378960 is an apocalyptic number.

2179378960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2179378960 is an abundant number, since it is smaller than the sum of its proper divisors (3348320816).

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

2179378960 is a wasteful number, since it uses less digits than its factorization.

2179378960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476591 (or 2476585 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 2179378960 is about 46683.8190382921. The cubic root of 2179378960 is about 1296.5151161939.

The spelling of 2179378960 in words is "two billion, one hundred seventy-nine million, three hundred seventy-eight thousand, nine hundred sixty".