28301422 has 8 divisors (see below), whose sum is σ = 42573456. Its totient is φ = 14110272.

The previous prime is 28301401. The next prime is 28301437. The reversal of 28301422 is 22410382.

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

It is a junction number, because it is equal to n+sod(n) for n = 28301393 and 28301402.

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, 19338 + ... + 20749.

It is an arithmetic number, because the mean of its divisors is an integer number (5321682).

Almost surely, 2^28301422 is an apocalyptic number.

28301422 is a deficient number, since it is larger than the sum of its proper divisors (14272034).

28301422 is a wasteful number, since it uses less digits than its factorization.

28301422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40442.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 28301422 is about 5319.9080819127. The cubic root of 28301422 is about 304.7446469728.

The spelling of 28301422 in words is "twenty-eight million, three hundred one thousand, four hundred twenty-two".