366867220 has 12 divisors (see below), whose sum is σ = 770421204. Its totient is φ = 146746880.

The previous prime is 366867199. The next prime is 366867223. The reversal of 366867220 is 22768663.

It can be written as a sum of positive squares in 2 ways, for example, as 63968004 + 302899216 = 7998^2 + 17404^2 .

It is a super-2 number, since 2×366867220² = 269183114221056800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366867223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9171661 + ... + 9171700.

It is an arithmetic number, because the mean of its divisors is an integer number (64201767).

Almost surely, 2^366867220 is an apocalyptic number.

It is an amenable number.

366867220 is an abundant number, since it is smaller than the sum of its proper divisors (403553984).

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

366867220 is a wasteful number, since it uses less digits than its factorization.

366867220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18343370 (or 18343368 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 366867220 is about 19153.7782173648. The cubic root of 366867220 is about 715.8735276964.

The spelling of 366867220 in words is "three hundred sixty-six million, eight hundred sixty-seven thousand, two hundred twenty".