2216534 has 4 divisors (see below), whose sum is σ = 3324804. Its totient is φ = 1108266.

The previous prime is 2216519. The next prime is 2216551. The reversal of 2216534 is 4356122.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554132 + ... + 554135.

It is an arithmetic number, because the mean of its divisors is an integer number (831201).

2^2216534 is an apocalyptic number.

2216534 is a deficient number, since it is larger than the sum of its proper divisors (1108270).

2216534 is a wasteful number, since it uses less digits than its factorization.

2216534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108269.

The product of its digits is 1440, while the sum is 23.

The square root of 2216534 is about 1488.8028747957. The cubic root of 2216534 is about 130.3841497163.

The spelling of 2216534 in words is "two million, two hundred sixteen thousand, five hundred thirty-four".