28224094 has 4 divisors (see below), whose sum is σ = 42336144. Its totient is φ = 14112046.

The previous prime is 28224083. The next prime is 28224103. The reversal of 28224094 is 49042282.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7056022 + ... + 7056025.

It is an arithmetic number, because the mean of its divisors is an integer number (10584036).

Almost surely, 2^28224094 is an apocalyptic number.

28224094 is a deficient number, since it is larger than the sum of its proper divisors (14112050).

28224094 is a wasteful number, since it uses less digits than its factorization.

28224094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14112049.

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

The square root of 28224094 is about 5312.6353159237. The cubic root of 28224094 is about 304.4668424489.

The spelling of 28224094 in words is "twenty-eight million, two hundred twenty-four thousand, ninety-four".