28242204 has 12 divisors (see below), whose sum is σ = 65898504. Its totient is φ = 9414064.

The previous prime is 28242199. The next prime is 28242223. The reversal of 28242204 is 40224282.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 1176747 + ... + 1176770.

It is an arithmetic number, because the mean of its divisors is an integer number (5491542).

Almost surely, 2^28242204 is an apocalyptic number.

It is an amenable number.

28242204 is an abundant number, since it is smaller than the sum of its proper divisors (37656300).

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

28242204 is a wasteful number, since it uses less digits than its factorization.

28242204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353524 (or 2353522 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 28242204 is about 5314.3394697742. The cubic root of 28242204 is about 304.5319489451.

Adding to 28242204 its reverse (40224282), we get a palindrome (68466486).

It can be divided in two parts, 282 and 42204, that added together give a triangular number (42486 = T₂₉₁).

The spelling of 28242204 in words is "twenty-eight million, two hundred forty-two thousand, two hundred four".