28840002 has 8 divisors (see below), whose sum is σ = 57680016. Its totient is φ = 9613332.

The previous prime is 28840001. The next prime is 28840027. The reversal of 28840002 is 20004882.

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

28840002 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (28840001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2403328 + ... + 2403339.

It is an arithmetic number, because the mean of its divisors is an integer number (7210002).

Almost surely, 2^28840002 is an apocalyptic number.

28840002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28840002 is a wasteful number, since it uses less digits than its factorization.

28840002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4806672.

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 28840002 is about 5370.2888190487. The cubic root of 28840002 is about 306.6656235524.

Adding to 28840002 its reverse (20004882), we get a palindrome (48844884).

The spelling of 28840002 in words is "twenty-eight million, eight hundred forty thousand, two".