28567330 has 32 divisors (see below), whose sum is σ = 57620160. Its totient is φ = 10105920.

The previous prime is 28567321. The next prime is 28567381. The reversal of 28567330 is 3376582.

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, 561 + ... + 7579.

It is an arithmetic number, because the mean of its divisors is an integer number (1800630).

Almost surely, 2^28567330 is an apocalyptic number.

28567330 is an abundant number, since it is smaller than the sum of its proper divisors (29052830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28567330 is a wasteful number, since it uses less digits than its factorization.

28567330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7074.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 28567330 is about 5344.8414382468. The cubic root of 28567330 is about 305.6960899668.

The spelling of 28567330 in words is "twenty-eight million, five hundred sixty-seven thousand, three hundred thirty".