2273556 has 12 divisors (see below), whose sum is σ = 5304992. Its totient is φ = 757848.

The previous prime is 2273549. The next prime is 2273561. The reversal of 2273556 is 6553722.

It is a tau number, because it is divible by the number of its divisors (12).

It is a d-powerful number, because it can be written as 2¹³ + 2¹⁹ + 7⁴ + 3¹⁰ + 5 + 5 + 6⁸ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94720 + ... + 94743.

2^2273556 is an apocalyptic number.

It is an amenable number.

2273556 is an abundant number, since it is smaller than the sum of its proper divisors (3031436).

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

2273556 is a wasteful number, since it uses less digits than its factorization.

2273556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189470 (or 189468 counting only the distinct ones).

The product of its digits is 12600, while the sum is 30.

The square root of 2273556 is about 1507.8315555791. The cubic root of 2273556 is about 131.4927733406.

It can be divided in two parts, 22735 and 56, that added together give a triangular number (22791 = T₂₁₃).

The spelling of 2273556 in words is "two million, two hundred seventy-three thousand, five hundred fifty-six".