22748518 has 32 divisors (see below), whose sum is σ = 38808000. Its totient is φ = 9922176.

The previous prime is 22748507. The next prime is 22748519. The reversal of 22748518 is 81584722.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22748519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65008 + ... + 65356.

It is an arithmetic number, because the mean of its divisors is an integer number (1212750).

Almost surely, 2^22748518 is an apocalyptic number.

22748518 is a deficient number, since it is larger than the sum of its proper divisors (16059482).

22748518 is a wasteful number, since it uses less digits than its factorization.

22748518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496.

The product of its digits is 35840, while the sum is 37.

The square root of 22748518 is about 4769.5406487418. The cubic root of 22748518 is about 283.3464024729.

The spelling of 22748518 in words is "twenty-two million, seven hundred forty-eight thousand, five hundred eighteen".