2228511 has 8 divisors (see below), whose sum is σ = 3009280. Its totient is φ = 1466712.

The previous prime is 2228509. The next prime is 2228519. The reversal of 2228511 is 1158222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2228511 - 2¹ = 2228509 is a prime.

It is a super-2 number, since 2×2228511² = 9932522554242, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2² + 2⁸ + 2¹⁷ + 8⁷ + 5² + 1 + 1 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228519) 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, 4465 + ... + 4938.

It is an arithmetic number, because the mean of its divisors is an integer number (376160).

2^2228511 is an apocalyptic number.

2228511 is a deficient number, since it is larger than the sum of its proper divisors (780769).

2228511 is an equidigital number, since it uses as much as digits as its factorization.

2228511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9485.

The product of its digits is 320, while the sum is 21.

The square root of 2228511 is about 1492.8198149810. The cubic root of 2228511 is about 130.6185707633.

The spelling of 2228511 in words is "two million, two hundred twenty-eight thousand, five hundred eleven".