2144354220 has 72 divisors (see below), whose sum is σ = 6508962096. Its totient is φ = 571439232.

The previous prime is 2144354207. The next prime is 2144354237. The reversal of 2144354220 is 224534412.

2144354220 is a `hidden beast` number, since 2 + 1 + 4 + 435 + 4 + 220 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 344859 + ... + 351021.

Almost surely, 2^2144354220 is an apocalyptic number.

2144354220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144354220 is an abundant number, since it is smaller than the sum of its proper divisors (4364607876).

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

2144354220 is a wasteful number, since it uses less digits than its factorization.

2144354220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8111 (or 8106 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 2144354220 is about 46307.1724466092. The cubic root of 2144354220 is about 1289.5321541249.

Adding to 2144354220 its reverse (224534412), we get a palindrome (2368888632).

The spelling of 2144354220 in words is "two billion, one hundred forty-four million, three hundred fifty-four thousand, two hundred twenty".