2154422276 has 6 divisors (see below), whose sum is σ = 3770238990. Its totient is φ = 1077211136.

The previous prime is 2154422251. The next prime is 2154422279. The reversal of 2154422276 is 6722244512.

It can be written as a sum of positive squares in only one way, i.e., 2069340100 + 85082176 = 45490^2 + 9224^2 .

It is not an unprimeable number, because it can be changed into a prime (2154422279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269302781 + ... + 269302788.

It is an arithmetic number, because the mean of its divisors is an integer number (628373165).

Almost surely, 2^2154422276 is an apocalyptic number.

It is an amenable number.

2154422276 is a deficient number, since it is larger than the sum of its proper divisors (1615816714).

2154422276 is a wasteful number, since it uses less digits than its factorization.

2154422276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538605573 (or 538605571 counting only the distinct ones).

The product of its digits is 53760, while the sum is 35.

The square root of 2154422276 is about 46415.7546098305. The cubic root of 2154422276 is about 1291.5471843379.

Adding to 2154422276 its reverse (6722244512), we get a palindrome (8876666788).

The spelling of 2154422276 in words is "two billion, one hundred fifty-four million, four hundred twenty-two thousand, two hundred seventy-six".