2220734 has 4 divisors (see below), whose sum is σ = 3331104. Its totient is φ = 1110366.

The previous prime is 2220731. The next prime is 2220749. The reversal of 2220734 is 4370222.

It is a happy number.

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 (2220731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555182 + ... + 555185.

It is an arithmetic number, because the mean of its divisors is an integer number (832776).

2^2220734 is an apocalyptic number.

2220734 is a deficient number, since it is larger than the sum of its proper divisors (1110370).

2220734 is a wasteful number, since it uses less digits than its factorization.

2220734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110369.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 2220734 is about 1490.2127364910. The cubic root of 2220734 is about 130.4664505684.

Adding to 2220734 its reverse (4370222), we get a palindrome (6590956).

The spelling of 2220734 in words is "two million, two hundred twenty thousand, seven hundred thirty-four".