2207776428 has 144 divisors (see below), whose sum is σ = 6636704256. Its totient is φ = 610001280.

The previous prime is 2207776411. The next prime is 2207776433. The reversal of 2207776428 is 8246777022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 424701 + ... + 429867.

It is an arithmetic number, because the mean of its divisors is an integer number (46088224).

Almost surely, 2^2207776428 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 2207776428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3318352128).

2207776428 is an abundant number, since it is smaller than the sum of its proper divisors (4428927828).

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

2207776428 is a wasteful number, since it uses less digits than its factorization.

2207776428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5284 (or 5279 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 45.

The square root of 2207776428 is about 46986.9814735954. The cubic root of 2207776428 is about 1302.1220623598.

The spelling of 2207776428 in words is "two billion, two hundred seven million, seven hundred seventy-six thousand, four hundred twenty-eight".