286620252 has 12 divisors (see below), whose sum is σ = 668780616. Its totient is φ = 95540080.

The previous prime is 286620239. The next prime is 286620259. The reversal of 286620252 is 252026682.

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 (286620259) 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, 11942499 + ... + 11942522.

It is an arithmetic number, because the mean of its divisors is an integer number (55731718).

Almost surely, 2^286620252 is an apocalyptic number.

It is an amenable number.

286620252 is an abundant number, since it is smaller than the sum of its proper divisors (382160364).

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

286620252 is a wasteful number, since it uses less digits than its factorization.

286620252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23885028 (or 23885026 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 286620252 is about 16929.8627283271. The cubic root of 286620252 is about 659.3291714725.

The spelling of 286620252 in words is "two hundred eighty-six million, six hundred twenty thousand, two hundred fifty-two".