366818369 has 4 divisors (see below), whose sum is σ = 366886740. Its totient is φ = 366750000.

The previous prime is 366818317. The next prime is 366818371. The reversal of 366818369 is 963818663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 963818663 = 9029 ⋅106747.

It can be written as a sum of positive squares in 2 ways, for example, as 238857025 + 127961344 = 15455^2 + 11312^2 .

It is a cyclic number.

It is not a de Polignac number, because 366818369 - 2⁸ = 366818113 is a prime.

It is a super-2 number, since 2×366818369² = 269111431671640322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (366818069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25382 + ... + 37119.

It is an arithmetic number, because the mean of its divisors is an integer number (91721685).

Almost surely, 2^366818369 is an apocalyptic number.

It is an amenable number.

366818369 is a deficient number, since it is larger than the sum of its proper divisors (68371).

366818369 is an equidigital number, since it uses as much as digits as its factorization.

366818369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68370.

The product of its digits is 1119744, while the sum is 50.

The square root of 366818369 is about 19152.5029434797. The cubic root of 366818369 is about 715.8417517222.

The spelling of 366818369 in words is "three hundred sixty-six million, eight hundred eighteen thousand, three hundred sixty-nine".