286212212 has 48 divisors (see below), whose sum is σ = 607455744. Its totient is φ = 116208000.

The previous prime is 286212211. The next prime is 286212233. The reversal of 286212212 is 212212682.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286212211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9662 + ... + 25802.

It is an arithmetic number, because the mean of its divisors is an integer number (12655328).

Almost surely, 2^286212212 is an apocalyptic number.

286212212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

286212212 is an abundant number, since it is smaller than the sum of its proper divisors (321243532).

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

286212212 is a wasteful number, since it uses less digits than its factorization.

286212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16200 (or 16198 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 286212212 is about 16917.8075411680. The cubic root of 286212212 is about 659.0161435298.

Adding to 286212212 its reverse (212212682), we get a palindrome (498424894).

The spelling of 286212212 in words is "two hundred eighty-six million, two hundred twelve thousand, two hundred twelve".