2220694 has 8 divisors (see below), whose sum is σ = 3806928. Its totient is φ = 951720.

The previous prime is 2220671. The next prime is 2220697. The reversal of 2220694 is 4960222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79297 + ... + 79324.

It is an arithmetic number, because the mean of its divisors is an integer number (475866).

2^2220694 is an apocalyptic number.

2220694 is a deficient number, since it is larger than the sum of its proper divisors (1586234).

2220694 is a wasteful number, since it uses less digits than its factorization.

2220694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158630.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2220694 is about 1490.1993155280. The cubic root of 2220694 is about 130.4656672404.

The spelling of 2220694 in words is "two million, two hundred twenty thousand, six hundred ninety-four".