363820243 has 4 divisors (see below), whose sum is σ = 364516408. Its totient is φ = 363124080.

The previous prime is 363820241. The next prime is 363820267. The reversal of 363820243 is 342028363.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342028363 = 31 ⋅11033173.

It is a cyclic number.

It is not a de Polignac number, because 363820243 - 2¹ = 363820241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (363820241) 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, 347298 + ... + 348343.

It is an arithmetic number, because the mean of its divisors is an integer number (91129102).

Almost surely, 2^363820243 is an apocalyptic number.

363820243 is a deficient number, since it is larger than the sum of its proper divisors (696165).

363820243 is an equidigital number, since it uses as much as digits as its factorization.

363820243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696164.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 363820243 is about 19074.0725331535. The cubic root of 363820243 is about 713.8861448074.

The spelling of 363820243 in words is "three hundred sixty-three million, eight hundred twenty thousand, two hundred forty-three".