28057322 has 16 divisors (see below), whose sum is σ = 43876320. Its totient is φ = 13443408.

The previous prime is 28057307. The next prime is 28057343. The reversal of 28057322 is 22375082.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2129 + ... + 7787.

It is an arithmetic number, because the mean of its divisors is an integer number (2742270).

Almost surely, 2^28057322 is an apocalyptic number.

28057322 is a deficient number, since it is larger than the sum of its proper divisors (15818998).

28057322 is a wasteful number, since it uses less digits than its factorization.

28057322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5765.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 28057322 is about 5296.9162727006. The cubic root of 28057322 is about 303.8659742189.

The spelling of 28057322 in words is "twenty-eight million, fifty-seven thousand, three hundred twenty-two".