22040422 has 8 divisors (see below), whose sum is σ = 33388272. Its totient is φ = 10911000.

The previous prime is 22040393. The next prime is 22040429. The reversal of 22040422 is 22404022.

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

It is a junction number, because it is equal to n+sod(n) for n = 22040396 and 22040405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22040429) 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, 54354 + ... + 54757.

It is an arithmetic number, because the mean of its divisors is an integer number (4173534).

Almost surely, 2^22040422 is an apocalyptic number.

22040422 is a deficient number, since it is larger than the sum of its proper divisors (11347850).

22040422 is a wasteful number, since it uses less digits than its factorization.

22040422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109214.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 22040422 is about 4694.7227820181. The cubic root of 22040422 is about 280.3754402405.

Adding to 22040422 its reverse (22404022), we get a palindrome (44444444).

The spelling of 22040422 in words is "twenty-two million, forty thousand, four hundred twenty-two".