2220494 has 4 divisors (see below), whose sum is σ = 3330744. Its totient is φ = 1110246.

The previous prime is 2220479. The next prime is 2220497. The reversal of 2220494 is 4940222.

2220494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555122 + ... + 555125.

It is an arithmetic number, because the mean of its divisors is an integer number (832686).

2^2220494 is an apocalyptic number.

2220494 is a deficient number, since it is larger than the sum of its proper divisors (1110250).

2220494 is a wasteful number, since it uses less digits than its factorization.

2220494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110249.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2220494 is about 1490.1322088996. The cubic root of 2220494 is about 130.4617504593.

The spelling of 2220494 in words is "two million, two hundred twenty thousand, four hundred ninety-four".