2159793420 has 48 divisors (see below), whose sum is σ = 6056709120. Its totient is φ = 575060416.

The previous prime is 2159793413. The next prime is 2159793421. The reversal of 2159793420 is 243979512.

It is not an unprimeable number, because it can be changed into a prime (2159793421) 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, 12229 + ... + 66851.

It is an arithmetic number, because the mean of its divisors is an integer number (126181440).

Almost surely, 2^2159793420 is an apocalyptic number.

2159793420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2159793420 is an abundant number, since it is smaller than the sum of its proper divisors (3896915700).

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

2159793420 is a wasteful number, since it uses less digits than its factorization.

2159793420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55294 (or 55292 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 2159793420 is about 46473.5776544049. The cubic root of 2159793420 is about 1292.6196031573.

The spelling of 2159793420 in words is "two billion, one hundred fifty-nine million, seven hundred ninety-three thousand, four hundred twenty".