22742458 has 8 divisors (see below), whose sum is σ = 34144128. Its totient is φ = 11361084.

The previous prime is 22742453. The next prime is 22742471. The reversal of 22742458 is 85424722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22742453) 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 in 3 ways as a sum of consecutive naturals, for example, 1866 + ... + 6997.

It is an arithmetic number, because the mean of its divisors is an integer number (4268016).

Almost surely, 2^22742458 is an apocalyptic number.

22742458 is a deficient number, since it is larger than the sum of its proper divisors (11401670).

22742458 is a wasteful number, since it uses less digits than its factorization.

22742458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10148.

The product of its digits is 35840, while the sum is 34.

The square root of 22742458 is about 4768.9053251244. The cubic root of 22742458 is about 283.3212399298.

The spelling of 22742458 in words is "twenty-two million, seven hundred forty-two thousand, four hundred fifty-eight".