2228481 has 6 divisors (see below), whose sum is σ = 3218930. Its totient is φ = 1485648.

The previous prime is 2228449. The next prime is 2228483. The reversal of 2228481 is 1848222.

2228481 is nontrivially palindromic in base 8.

It can be written as a sum of positive squares in only one way, i.e., 1418481 + 810000 = 1191^2 + 900^2 .

It is not a de Polignac number, because 2228481 - 2⁵ = 2228449 is a prime.

It is a super-2 number, since 2×2228481² = 9932255134722, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁶ + 2¹⁷ + 2²¹ + 8² + 4³ + 8² + 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 (2228483) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123796 + ... + 123813.

2^2228481 is an apocalyptic number.

It is an amenable number.

2228481 is a deficient number, since it is larger than the sum of its proper divisors (990449).

2228481 is a wasteful number, since it uses less digits than its factorization.

2228481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247615 (or 247612 counting only the distinct ones).

The product of its digits is 2048, while the sum is 27.

The square root of 2228481 is about 1492.8097668491. The cubic root of 2228481 is about 130.6179846358.

The spelling of 2228481 in words is "two million, two hundred twenty-eight thousand, four hundred eighty-one".