28330002 has 24 divisors (see below), whose sum is σ = 62689536. Its totient is φ = 9242136.

The previous prime is 28329967. The next prime is 28330009. The reversal of 28330002 is 20003382.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (28330009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15898 + ... + 17589.

It is an arithmetic number, because the mean of its divisors is an integer number (2612064).

Almost surely, 2^28330002 is an apocalyptic number.

28330002 is an abundant number, since it is smaller than the sum of its proper divisors (34359534).

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

28330002 is a wasteful number, since it uses less digits than its factorization.

28330002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33542 (or 33539 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 28330002 is about 5322.5935407468. The cubic root of 28330002 is about 304.8471939034.

Adding to 28330002 its reverse (20003382), we get a palindrome (48333384).

The spelling of 28330002 in words is "twenty-eight million, three hundred thirty thousand, two".