2774021216 has 48 divisors (see below), whose sum is σ = 5769973440. Its totient is φ = 1310668800.

The previous prime is 2774021213. The next prime is 2774021221. The reversal of 2774021216 is 6121204772.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2774021213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11816 + ... + 75416.

It is an arithmetic number, because the mean of its divisors is an integer number (120207780).

Almost surely, 2^2774021216 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 2774021216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2884986720).

2774021216 is an abundant number, since it is smaller than the sum of its proper divisors (2995952224).

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

2774021216 is a wasteful number, since it uses less digits than its factorization.

2774021216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63687 (or 63679 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 2774021216 is about 52668.9777383233. The cubic root of 2774021216 is about 1405.0871415833.

Adding to 2774021216 its reverse (6121204772), we get a palindrome (8895225988).

The spelling of 2774021216 in words is "two billion, seven hundred seventy-four million, twenty-one thousand, two hundred sixteen".