2194127720 has 16 divisors (see below), whose sum is σ = 4936787460. Its totient is φ = 877651072.

The previous prime is 2194127717. The next prime is 2194127731. The reversal of 2194127720 is 277214912.

2194127720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2193798244 + 329476 = 46838^2 + 574^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27426557 + ... + 27426636.

Almost surely, 2^2194127720 is an apocalyptic number.

2194127720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2194127720 is an abundant number, since it is smaller than the sum of its proper divisors (2742659740).

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

2194127720 is a wasteful number, since it uses less digits than its factorization.

2194127720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54853204 (or 54853200 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 2194127720 is about 46841.5170548521. The cubic root of 2194127720 is about 1299.4332282809.

The spelling of 2194127720 in words is "two billion, one hundred ninety-four million, one hundred twenty-seven thousand, seven hundred twenty".