2228855731 has 4 divisors (see below), whose sum is σ = 2248580232. Its totient is φ = 2209131232.

The previous prime is 2228855719. The next prime is 2228855749. The reversal of 2228855731 is 1375588222.

2228855731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2228855731 - 2⁹ = 2228855219 is a prime.

It is a super-2 number, since 2×2228855731² = 9935595739223088722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2228855791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9862081 + ... + 9862306.

It is an arithmetic number, because the mean of its divisors is an integer number (562145058).

Almost surely, 2^2228855731 is an apocalyptic number.

2228855731 is a deficient number, since it is larger than the sum of its proper divisors (19724501).

2228855731 is a wasteful number, since it uses less digits than its factorization.

2228855731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19724500.

The product of its digits is 268800, while the sum is 43.

The square root of 2228855731 is about 47210.7586361414. The cubic root of 2228855731 is about 1306.2530559638.

The spelling of 2228855731 in words is "two billion, two hundred twenty-eight million, eight hundred fifty-five thousand, seven hundred thirty-one".