28860252 has 12 divisors (see below), whose sum is σ = 67340616. Its totient is φ = 9620080.

The previous prime is 28860233. The next prime is 28860253. The reversal of 28860252 is 25206882.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28860253) 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, 1202499 + ... + 1202522.

It is an arithmetic number, because the mean of its divisors is an integer number (5611718).

Almost surely, 2^28860252 is an apocalyptic number.

It is an amenable number.

28860252 is an abundant number, since it is smaller than the sum of its proper divisors (38480364).

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

28860252 is a wasteful number, since it uses less digits than its factorization.

28860252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405028 (or 2405026 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 28860252 is about 5372.1738616690. The cubic root of 28860252 is about 306.7373818230.

The spelling of 28860252 in words is "twenty-eight million, eight hundred sixty thousand, two hundred fifty-two".