366858 has 24 divisors (see below), whose sum is σ = 807300. Its totient is φ = 120384.

The previous prime is 366853. The next prime is 366859. The reversal of 366858 is 858663.

It can be written as a sum of positive squares in 2 ways, for example, as 363609 + 3249 = 603^2 + 57^2 .

It is not an unprimeable number, because it can be changed into a prime (366851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1488 + ... + 1716.

2³⁶⁶⁸⁵⁸ is an apocalyptic number.

366858 is an abundant number, since it is smaller than the sum of its proper divisors (440442).

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

366858 is a wasteful number, since it uses less digits than its factorization.

366858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 323 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 366858 is about 605.6880385149. The cubic root of 366858 is about 71.5867530605.

It can be divided in two parts, 366 and 858, that multiplied together give a triangular number (314028 = T₇₉₂).

The spelling of 366858 in words is "three hundred sixty-six thousand, eight hundred fifty-eight".