366261 has 16 divisors (see below), whose sum is σ = 566784. Its totient is φ = 206064.

The previous prime is 366259. The next prime is 366269. The reversal of 366261 is 162663.

It is not a de Polignac number, because 366261 - 2¹ = 366259 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366269) 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, 2166 + ... + 2328.

It is an arithmetic number, because the mean of its divisors is an integer number (35424).

2³⁶⁶²⁶¹ is an apocalyptic number.

It is an amenable number.

366261 is a deficient number, since it is larger than the sum of its proper divisors (200523).

366261 is a wasteful number, since it uses less digits than its factorization.

366261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280.

The product of its digits is 1296, while the sum is 24.

The square root of 366261 is about 605.1950098935. The cubic root of 366261 is about 71.5479001572.

The spelling of 366261 in words is "three hundred sixty-six thousand, two hundred sixty-one".