22742066 has 4 divisors (see below), whose sum is σ = 34113102. Its totient is φ = 11371032.

The previous prime is 22742059. The next prime is 22742113. The reversal of 22742066 is 66024722.

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., 14784025 + 7958041 = 3845^2 + 2821^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5685515 + ... + 5685518.

Almost surely, 2^22742066 is an apocalyptic number.

22742066 is a deficient number, since it is larger than the sum of its proper divisors (11371036).

22742066 is a wasteful number, since it uses less digits than its factorization.

22742066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11371035.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 22742066 is about 4768.8642253686. The cubic root of 22742066 is about 283.3196120998.

Adding to 22742066 its reverse (66024722), we get a palindrome (88766788).

The spelling of 22742066 in words is "twenty-two million, seven hundred forty-two thousand, sixty-six".