2216523434 has 4 divisors (see below), whose sum is σ = 3324785154. Its totient is φ = 1108261716.

The previous prime is 2216523433. The next prime is 2216523457. The reversal of 2216523434 is 4343256122.

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

It can be written as a sum of positive squares in only one way, i.e., 2195391025 + 21132409 = 46855^2 + 4597^2 .

It is a super-2 number, since 2×2216523434² = 9825952266942304712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2216523434.

It is not an unprimeable number, because it can be changed into a prime (2216523433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554130857 + ... + 554130860.

Almost surely, 2^2216523434 is an apocalyptic number.

2216523434 is a deficient number, since it is larger than the sum of its proper divisors (1108261720).

2216523434 is a wasteful number, since it uses less digits than its factorization.

2216523434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108261719.

The product of its digits is 34560, while the sum is 32.

The square root of 2216523434 is about 47079.9685004143. The cubic root of 2216523434 is about 1303.8394253987.

Adding to 2216523434 its reverse (4343256122), we get a palindrome (6559779556).

The spelling of 2216523434 in words is "two billion, two hundred sixteen million, five hundred twenty-three thousand, four hundred thirty-four".