22141738 has 4 divisors (see below), whose sum is σ = 33212610. Its totient is φ = 11070868.

The previous prime is 22141711. The next prime is 22141739. The reversal of 22141738 is 83714122.

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

It can be written as a sum of positive squares in only one way, i.e., 15705369 + 6436369 = 3963^2 + 2537^2 .

It is not an unprimeable number, because it can be changed into a prime (22141739) by changing a digit.

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, 5535433 + ... + 5535436.

Almost surely, 2^22141738 is an apocalyptic number.

22141738 is a deficient number, since it is larger than the sum of its proper divisors (11070872).

22141738 is a wasteful number, since it uses less digits than its factorization.

22141738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11070871.

The product of its digits is 2688, while the sum is 28.

The square root of 22141738 is about 4705.5008235043. The cubic root of 22141738 is about 280.8043960670.

The spelling of 22141738 in words is "twenty-two million, one hundred forty-one thousand, seven hundred thirty-eight".