366669 has 12 divisors (see below), whose sum is σ = 535392. Its totient is φ = 241800.

The previous prime is 366631. The next prime is 366677. The reversal of 366669 is 966663.

It is not a de Polignac number, because 366669 - 2¹¹ = 364621 is a prime.

It is a super-2 number, since 2×366669² = 268892311122, which contains 22 as substring.

It is a Curzon number.

366669 is a lucky number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366169) 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, 1024 + ... + 1334.

It is an arithmetic number, because the mean of its divisors is an integer number (44616).

2³⁶⁶⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

366669 is a deficient number, since it is larger than the sum of its proper divisors (168723).

366669 is a wasteful number, since it uses less digits than its factorization.

366669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448 (or 445 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 366669 is about 605.5319975030. The cubic root of 366669 is about 71.5744574579.

It can be divided in two parts, 366 and 669, that added together give a triangular number (1035 = T₄₅).

The spelling of 366669 in words is "three hundred sixty-six thousand, six hundred sixty-nine".