28094422 has 8 divisors (see below), whose sum is σ = 42354000. Its totient is φ = 13976424.

The previous prime is 28094419. The next prime is 28094447. The reversal of 28094422 is 22449082.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34897 + ... + 35692.

It is an arithmetic number, because the mean of its divisors is an integer number (5294250).

Almost surely, 2^28094422 is an apocalyptic number.

28094422 is a deficient number, since it is larger than the sum of its proper divisors (14259578).

28094422 is a wasteful number, since it uses less digits than its factorization.

28094422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70790.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 28094422 is about 5300.4171533946. The cubic root of 28094422 is about 303.9998485110. Note that the first 3 decimals are identical.

The spelling of 28094422 in words is "twenty-eight million, ninety-four thousand, four hundred twenty-two".