22681304 has 8 divisors (see below), whose sum is σ = 42527460. Its totient is φ = 11340648.

The previous prime is 22681279. The next prime is 22681313. The reversal of 22681304 is 40318622.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×22681304² = 1028883102280832, which contains 22 as substring.

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, 1417574 + ... + 1417589.

Almost surely, 2^22681304 is an apocalyptic number.

It is an amenable number.

22681304 is a deficient number, since it is larger than the sum of its proper divisors (19846156).

22681304 is a wasteful number, since it uses less digits than its factorization.

22681304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2835169 (or 2835165 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 22681304 is about 4762.4892650798. The cubic root of 22681304 is about 283.0670636471.

Adding to 22681304 its reverse (40318622), we get a palindrome (62999926).

The spelling of 22681304 in words is "twenty-two million, six hundred eighty-one thousand, three hundred four".