22148938 has 32 divisors (see below), whose sum is σ = 39771648. Its totient is φ = 9052800.

The previous prime is 22148921. The next prime is 22148939. The reversal of 22148938 is 83984122.

It is a junction number, because it is equal to n+sod(n) for n = 22148897 and 22148906.

It is not an unprimeable number, because it can be changed into a prime (22148939) 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, 26568 + ... + 27388.

It is an arithmetic number, because the mean of its divisors is an integer number (1242864).

Almost surely, 2^22148938 is an apocalyptic number.

22148938 is a deficient number, since it is larger than the sum of its proper divisors (17622710).

22148938 is a wasteful number, since it uses less digits than its factorization.

22148938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918.

The product of its digits is 27648, while the sum is 37.

The square root of 22148938 is about 4706.2658233466. The cubic root of 22148938 is about 280.8348298801.

The spelling of 22148938 in words is "twenty-two million, one hundred forty-eight thousand, nine hundred thirty-eight".