366580 has 12 divisors (see below), whose sum is σ = 769860. Its totient is φ = 146624.

The previous prime is 366547. The next prime is 366593. The reversal of 366580 is 85663.

366580 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 156816 + 209764 = 396^2 + 458^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9145 + ... + 9184.

It is an arithmetic number, because the mean of its divisors is an integer number (64155).

2³⁶⁶⁵⁸⁰ is an apocalyptic number.

It is an amenable number.

366580 is an abundant number, since it is smaller than the sum of its proper divisors (403280).

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

366580 is a wasteful number, since it uses less digits than its factorization.

366580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18338 (or 18336 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 366580 is about 605.4585039456. The cubic root of 366580 is about 71.5686660019.

It can be divided in two parts, 366 and 580, that added together give a triangular number (946 = T₄₃).

The spelling of 366580 in words is "three hundred sixty-six thousand, five hundred eighty".