22471938 has 16 divisors (see below), whose sum is σ = 49937760. Its totient is φ = 7490628.

The previous prime is 22471937. The next prime is 22471949. The reversal of 22471938 is 83917422.

It is not an unprimeable number, because it can be changed into a prime (22471937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208020 + ... + 208127.

It is an arithmetic number, because the mean of its divisors is an integer number (3121110).

Almost surely, 2^22471938 is an apocalyptic number.

22471938 is an abundant number, since it is smaller than the sum of its proper divisors (27465822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22471938 is a wasteful number, since it uses less digits than its factorization.

22471938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416158 (or 416152 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 22471938 is about 4740.4575728510. The cubic root of 22471938 is about 282.1933938240.

It can be divided in two parts, 22471 and 938, that added together give a square (23409 = 153²).

The spelling of 22471938 in words is "twenty-two million, four hundred seventy-one thousand, nine hundred thirty-eight".