22013534 has 8 divisors (see below), whose sum is σ = 34085568. Its totient is φ = 10651680.

The previous prime is 22013491. The next prime is 22013539. The reversal of 22013534 is 43531022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22013539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177467 + ... + 177590.

It is an arithmetic number, because the mean of its divisors is an integer number (4260696).

Almost surely, 2^22013534 is an apocalyptic number.

22013534 is a deficient number, since it is larger than the sum of its proper divisors (12072034).

22013534 is a wasteful number, since it uses less digits than its factorization.

22013534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355090.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 22013534 is about 4691.8582672540. The cubic root of 22013534 is about 280.2613800754.

Adding to 22013534 its reverse (43531022), we get a palindrome (65544556).

The spelling of 22013534 in words is "twenty-two million, thirteen thousand, five hundred thirty-four".