22013234 has 8 divisors (see below), whose sum is σ = 33041820. Its totient is φ = 10999296.

The previous prime is 22013227. The next prime is 22013239. The reversal of 22013234 is 43231022.

It can be written as a sum of positive squares in 2 ways, for example, as 21949225 + 64009 = 4685^2 + 253^2 .

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

It is a super-2 number, since 2×22013234² = 969164942277512, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22013239) 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, 1622 + ... + 6830.

Almost surely, 2^22013234 is an apocalyptic number.

22013234 is a deficient number, since it is larger than the sum of its proper divisors (11028586).

22013234 is a wasteful number, since it uses less digits than its factorization.

22013234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7324.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22013234 is about 4691.8262968699. The cubic root of 22013234 is about 280.2601069374.

Adding to 22013234 its reverse (43231022), we get a palindrome (65244256).

The spelling of 22013234 in words is "twenty-two million, thirteen thousand, two hundred thirty-four".