22040612 has 12 divisors (see below), whose sum is σ = 42077616. Its totient is φ = 10018440.

The previous prime is 22040593. The next prime is 22040621. The reversal of 22040612 is 21604022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250418 + ... + 250505.

It is an arithmetic number, because the mean of its divisors is an integer number (3506468).

Almost surely, 2^22040612 is an apocalyptic number.

22040612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22040612 is a deficient number, since it is larger than the sum of its proper divisors (20037004).

22040612 is a wasteful number, since it uses less digits than its factorization.

22040612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500938 (or 500936 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 22040612 is about 4694.7430174611. The cubic root of 22040612 is about 280.3762458993.

Adding to 22040612 its reverse (21604022), we get a palindrome (43644634).

The spelling of 22040612 in words is "twenty-two million, forty thousand, six hundred twelve".