286621252 has 6 divisors (see below), whose sum is σ = 501587198. Its totient is φ = 143310624.

The previous prime is 286621229. The next prime is 286621261. The reversal of 286621252 is 252126682.

It can be written as a sum of positive squares in only one way, i.e., 271129156 + 15492096 = 16466^2 + 3936^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35827653 + ... + 35827660.

Almost surely, 2^286621252 is an apocalyptic number.

It is an amenable number.

286621252 is a deficient number, since it is larger than the sum of its proper divisors (214965946).

286621252 is a wasteful number, since it uses less digits than its factorization.

286621252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71655317 (or 71655315 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 286621252 is about 16929.8922619135. The cubic root of 286621252 is about 659.3299382576.

The spelling of 286621252 in words is "two hundred eighty-six million, six hundred twenty-one thousand, two hundred fifty-two".