2220993 has 16 divisors (see below), whose sum is σ = 3368640. Its totient is φ = 1445472.

The previous prime is 2220979. The next prime is 2221007. The reversal of 2220993 is 3990222.

It is an interprime number because it is at equal distance from previous prime (2220979) and next prime (2221007).

It is not a de Polignac number, because 2220993 - 2⁵ = 2220961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

2220993 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2220913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205 + ... + 2117.

It is an arithmetic number, because the mean of its divisors is an integer number (210540).

2^2220993 is an apocalyptic number.

It is an amenable number.

2220993 is a deficient number, since it is larger than the sum of its proper divisors (1147647).

2220993 is a wasteful number, since it uses less digits than its factorization.

2220993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965 (or 1959 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 2220993 is about 1490.2996343018. The cubic root of 2220993 is about 130.4715223896.

The spelling of 2220993 in words is "two million, two hundred twenty thousand, nine hundred ninety-three".