28533394 has 8 divisors (see below), whose sum is σ = 42914160. Its totient is φ = 14228676.

The previous prime is 28533389. The next prime is 28533433. The reversal of 28533394 is 49333582.

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

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, 18064 + ... + 19579.

It is an arithmetic number, because the mean of its divisors is an integer number (5364270).

Almost surely, 2^28533394 is an apocalyptic number.

28533394 is a deficient number, since it is larger than the sum of its proper divisors (14380766).

28533394 is a wasteful number, since it uses less digits than its factorization.

28533394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38024.

The product of its digits is 77760, while the sum is 37.

The square root of 28533394 is about 5341.6658450337. The cubic root of 28533394 is about 305.5749934423.

The spelling of 28533394 in words is "twenty-eight million, five hundred thirty-three thousand, three hundred ninety-four".