2281730 has 16 divisors (see below), whose sum is σ = 4480704. Its totient is φ = 829680.

The previous prime is 2281717. The next prime is 2281739. The reversal of 2281730 is 371822.

It is a junction number, because it is equal to n+sod(n) for n = 2281696 and 2281705.

It is not an unprimeable number, because it can be changed into a prime (2281739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10262 + ... + 10481.

It is an arithmetic number, because the mean of its divisors is an integer number (280044).

2^2281730 is an apocalyptic number.

2281730 is a deficient number, since it is larger than the sum of its proper divisors (2198974).

2281730 is a wasteful number, since it uses less digits than its factorization.

2281730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20761.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2281730 is about 1510.5396386722. The cubic root of 2281730 is about 131.6501679553.

The spelling of 2281730 in words is "two million, two hundred eighty-one thousand, seven hundred thirty".