28321354 has 32 divisors (see below), whose sum is σ = 47278080. Its totient is φ = 12665088.

The previous prime is 28321339. The next prime is 28321367. The reversal of 28321354 is 45312382.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58887 + ... + 59365.

It is an arithmetic number, because the mean of its divisors is an integer number (1477440).

Almost surely, 2^28321354 is an apocalyptic number.

28321354 is a deficient number, since it is larger than the sum of its proper divisors (18956726).

28321354 is a wasteful number, since it uses less digits than its factorization.

28321354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582.

The product of its digits is 5760, while the sum is 28.

The square root of 28321354 is about 5321.7810928297. The cubic root of 28321354 is about 304.8161715873.

It can be divided in two parts, 2832 and 1354, that added together give a triangular number (4186 = T₉₁).

The spelling of 28321354 in words is "twenty-eight million, three hundred twenty-one thousand, three hundred fifty-four".