2281590 has 48 divisors (see below), whose sum is σ = 6014736. Its totient is φ = 600000.

The previous prime is 2281579. The next prime is 2281607. The reversal of 2281590 is 951822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8965 + ... + 9215.

It is an arithmetic number, because the mean of its divisors is an integer number (125307).

2^2281590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2281590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3007368).

2281590 is an abundant number, since it is smaller than the sum of its proper divisors (3733146).

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

2281590 is a wasteful number, since it uses less digits than its factorization.

2281590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 2281590 is about 1510.4932969067. The cubic root of 2281590 is about 131.6474753492.

The spelling of 2281590 in words is "two million, two hundred eighty-one thousand, five hundred ninety".