2281740 has 48 divisors (see below), whose sum is σ = 6767712. Its totient is φ = 572416.

The previous prime is 2281739. The next prime is 2281751. The reversal of 2281740 is 471822.

It is a self number, because there is not a number n which added to its sum of digits gives 2281740.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99 + ... + 2138.

It is an arithmetic number, because the mean of its divisors is an integer number (140994).

2^2281740 is an apocalyptic number.

2281740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2281740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3383856).

2281740 is an abundant number, since it is smaller than the sum of its proper divisors (4485972).

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

2281740 is a wasteful number, since it uses less digits than its factorization.

2281740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266 (or 2264 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 2281740 is about 1510.5429487439. The cubic root of 2281740 is about 131.6503602801.

The spelling of 2281740 in words is "two million, two hundred eighty-one thousand, seven hundred forty".