22040344 has 8 divisors (see below), whose sum is σ = 41325660. Its totient is φ = 11020168.

The previous prime is 22040303. The next prime is 22040353. The reversal of 22040344 is 44304022.

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

It is a super-3 number, since 3×22040344³ (a number of 23 digits) contains 333 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, 1377514 + ... + 1377529.

Almost surely, 2^22040344 is an apocalyptic number.

It is an amenable number.

22040344 is a deficient number, since it is larger than the sum of its proper divisors (19285316).

22040344 is a wasteful number, since it uses less digits than its factorization.

22040344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755049 (or 2755045 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 22040344 is about 4694.7144748110. The cubic root of 22040344 is about 280.3751094950.

Adding to 22040344 its reverse (44304022), we get a palindrome (66344366).

The spelling of 22040344 in words is "twenty-two million, forty thousand, three hundred forty-four".