27900252 has 18 divisors (see below), whose sum is σ = 70525728. Its totient is φ = 9300072.

The previous prime is 27900239. The next prime is 27900259. The reversal of 27900252 is 25200972.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27900259) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 387468 + ... + 387539.

It is an arithmetic number, because the mean of its divisors is an integer number (3918096).

Almost surely, 2^27900252 is an apocalyptic number.

It is an amenable number.

27900252 is an abundant number, since it is smaller than the sum of its proper divisors (42625476).

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

27900252 is a wasteful number, since it uses less digits than its factorization.

27900252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775017 (or 775012 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 27900252 is about 5282.0689128409. The cubic root of 27900252 is about 303.2978804384.

The spelling of 27900252 in words is "twenty-seven million, nine hundred thousand, two hundred fifty-two".