2221434 has 24 divisors (see below), whose sum is σ = 4848480. Its totient is φ = 735048.

The previous prime is 2221433. The next prime is 2221447. The reversal of 2221434 is 4341222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2221433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2637 + ... + 3375.

It is an arithmetic number, because the mean of its divisors is an integer number (202020).

2^2221434 is an apocalyptic number.

2221434 is an abundant number, since it is smaller than the sum of its proper divisors (2627046).

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

2221434 is a wasteful number, since it uses less digits than its factorization.

2221434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914 (or 911 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 2221434 is about 1490.4475837815. The cubic root of 2221434 is about 130.4801572860.

Adding to 2221434 its reverse (4341222), we get a palindrome (6562656).

The spelling of 2221434 in words is "two million, two hundred twenty-one thousand, four hundred thirty-four".