28345002 has 32 divisors (see below), whose sum is σ = 64950144. Its totient is φ = 8078400.

The previous prime is 28344989. The next prime is 28345007. The reversal of 28345002 is 20054382.

It is not an unprimeable number, because it can be changed into a prime (28345007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27252 + ... + 28272.

It is an arithmetic number, because the mean of its divisors is an integer number (2029692).

Almost surely, 2^28345002 is an apocalyptic number.

28345002 is an abundant number, since it is smaller than the sum of its proper divisors (36605142).

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

28345002 is a wasteful number, since it uses less digits than its factorization.

28345002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 28345002 is about 5324.0024417725. The cubic root of 28345002 is about 304.9009873000.

Adding to 28345002 its reverse (20054382), we get a palindrome (48399384).

The spelling of 28345002 in words is "twenty-eight million, three hundred forty-five thousand, two".