22013304 has 32 divisors (see below), whose sum is σ = 55527120. Its totient is φ = 7271936.

The previous prime is 22013281. The next prime is 22013339. The reversal of 22013304 is 40331022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1347 + ... + 6770.

Almost surely, 2^22013304 is an apocalyptic number.

22013304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22013304 is an abundant number, since it is smaller than the sum of its proper divisors (33513816).

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

22013304 is a wasteful number, since it uses less digits than its factorization.

22013304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8239 (or 8235 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 22013304 is about 4691.8337566457. The cubic root of 22013304 is about 280.2604040040.

Adding to 22013304 its reverse (40331022), we get a palindrome (62344326).

The spelling of 22013304 in words is "twenty-two million, thirteen thousand, three hundred four".