2216730 has 32 divisors (see below), whose sum is σ = 5601600. Its totient is φ = 559872.

The previous prime is 2216729. The next prime is 2216743. The reversal of 2216730 is 376122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2216697 and 2216706.

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, 1375 + ... + 2514.

It is an arithmetic number, because the mean of its divisors is an integer number (175050).

2^2216730 is an apocalyptic number.

2216730 is an abundant number, since it is smaller than the sum of its proper divisors (3384870).

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

2216730 is a wasteful number, since it uses less digits than its factorization.

2216730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3918.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 2216730 is about 1488.8686980389. The cubic root of 2216730 is about 130.3879927343.

The spelling of 2216730 in words is "two million, two hundred sixteen thousand, seven hundred thirty".