2281536 has 84 divisors (see below), whose sum is σ = 6954012. Its totient is φ = 712704.

The previous prime is 2281529. The next prime is 2281567. The reversal of 2281536 is 6351822.

It can be written as a sum of positive squares in 2 ways, for example, as 1115136 + 1166400 = 1056^2 + 1080^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9676 + ... + 9908.

2^2281536 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 2281536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3477006).

2281536 is an abundant number, since it is smaller than the sum of its proper divisors (4672476).

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

2281536 is a wasteful number, since it uses less digits than its factorization.

2281536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 255 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2281536 is about 1510.4754218457. The cubic root of 2281536 is about 131.6464367431.

It can be divided in two parts, 228 and 1536, that added together give a square (1764 = 42²).

The spelling of 2281536 in words is "two million, two hundred eighty-one thousand, five hundred thirty-six".