22244518 has 4 divisors (see below), whose sum is σ = 33366780. Its totient is φ = 11122258.

The previous prime is 22244503. The next prime is 22244539. The reversal of 22244518 is 81544222.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561128 + ... + 5561131.

It is an arithmetic number, because the mean of its divisors is an integer number (8341695).

Almost surely, 2^22244518 is an apocalyptic number.

22244518 is a deficient number, since it is larger than the sum of its proper divisors (11122262).

22244518 is a wasteful number, since it uses less digits than its factorization.

22244518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11122261.

The product of its digits is 5120, while the sum is 28.

The square root of 22244518 is about 4716.4094393935. The cubic root of 22244518 is about 281.2382152758.

The spelling of 22244518 in words is "twenty-two million, two hundred forty-four thousand, five hundred eighteen".