2146977216 has 84 divisors (see below), whose sum is σ = 6173062584. Its totient is φ = 713433600.

The previous prime is 2146977211. The next prime is 2146977253. The reversal of 2146977216 is 6127796412.

It is a super-2 number, since 2×2146977216² = 9219022332046221312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146977211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185026 + ... + 196286.

Almost surely, 2^2146977216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2146977216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3086531292).

2146977216 is an abundant number, since it is smaller than the sum of its proper divisors (4026085368).

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

2146977216 is a wasteful number, since it uses less digits than its factorization.

2146977216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11610 (or 11597 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 2146977216 is about 46335.4854943811. The cubic root of 2146977216 is about 1290.0577295239.

The spelling of 2146977216 in words is "two billion, one hundred forty-six million, nine hundred seventy-seven thousand, two hundred sixteen".