366345643 has 4 divisors (see below), whose sum is σ = 366411528. Its totient is φ = 366279760.

The previous prime is 366345613. The next prime is 366345671. The reversal of 366345643 is 346543663.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 346543663 = 599 ⋅578537.

It is a cyclic number.

It is not a de Polignac number, because 366345643 - 2⁵ = 366345611 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 366345596 and 366345605.

It is not an unprimeable number, because it can be changed into a prime (366345613) 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, 23746 + ... + 36007.

It is an arithmetic number, because the mean of its divisors is an integer number (91602882).

Almost surely, 2^366345643 is an apocalyptic number.

366345643 is a deficient number, since it is larger than the sum of its proper divisors (65885).

366345643 is an equidigital number, since it uses as much as digits as its factorization.

366345643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65884.

The product of its digits is 466560, while the sum is 40.

The square root of 366345643 is about 19140.1578624629. The cubic root of 366345643 is about 715.5341131132.

The spelling of 366345643 in words is "three hundred sixty-six million, three hundred forty-five thousand, six hundred forty-three".