2243730 has 32 divisors (see below), whose sum is σ = 5572800. Its totient is φ = 577472.

The previous prime is 2243723. The next prime is 2243741. The reversal of 2243730 is 373422.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2243697 and 2243706.

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, 420 + ... + 2159.

It is an arithmetic number, because the mean of its divisors is an integer number (174150).

2^2243730 is an apocalyptic number.

2243730 is an abundant number, since it is smaller than the sum of its proper divisors (3329070).

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

2243730 is a wasteful number, since it uses less digits than its factorization.

2243730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2618.

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 2243730 is about 1497.9085419344. The cubic root of 2243730 is about 130.9152375937.

The spelling of 2243730 in words is "two million, two hundred forty-three thousand, seven hundred thirty".