28452252 has 12 divisors (see below), whose sum is σ = 66388616. Its totient is φ = 9484080.

The previous prime is 28452241. The next prime is 28452257. The reversal of 28452252 is 25225482.

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 (28452257) 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, 1185499 + ... + 1185522.

Almost surely, 2^28452252 is an apocalyptic number.

It is an amenable number.

28452252 is an abundant number, since it is smaller than the sum of its proper divisors (37936364).

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

28452252 is a wasteful number, since it uses less digits than its factorization.

28452252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371028 (or 2371026 counting only the distinct ones).

The product of its digits is 12800, while the sum is 30.

The square root of 28452252 is about 5334.0652414458. The cubic root of 28452252 is about 305.2850582302.

The spelling of 28452252 in words is "twenty-eight million, four hundred fifty-two thousand, two hundred fifty-two".