366399 has 12 divisors (see below), whose sum is σ = 577512. Its totient is φ = 222000.

The previous prime is 366397. The next prime is 366409. The reversal of 366399 is 993663.

It is not a de Polignac number, because 366399 - 2¹ = 366397 is a prime.

366399 is a lucky number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1752 + ... + 1949.

It is an arithmetic number, because the mean of its divisors is an integer number (48126).

2³⁶⁶³⁹⁹ is an apocalyptic number.

366399 is a deficient number, since it is larger than the sum of its proper divisors (211113).

366399 is a wasteful number, since it uses less digits than its factorization.

366399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3718 (or 3715 counting only the distinct ones).

The product of its digits is 26244, while the sum is 36.

The square root of 366399 is about 605.3090119930. The cubic root of 366399 is about 71.5568849799.

Subtracting 366399 from its reverse (993663), we obtain a square (627264 = 792²).

The spelling of 366399 in words is "three hundred sixty-six thousand, three hundred ninety-nine".