402320243 has 8 divisors (see below), whose sum is σ = 434179200. Its totient is φ = 370591488.

The previous prime is 402320227. The next prime is 402320267. The reversal of 402320243 is 342023204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402320243 - 2⁴ = 402320227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402320213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26078 + ... + 38531.

It is an arithmetic number, because the mean of its divisors is an integer number (54272400).

Almost surely, 2^402320243 is an apocalyptic number.

402320243 is a deficient number, since it is larger than the sum of its proper divisors (31858957).

402320243 is a wasteful number, since it uses less digits than its factorization.

402320243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65101.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 402320243 is about 20057.9222004673. The cubic root of 402320243 is about 738.2281953583.

Adding to 402320243 its reverse (342023204), we get a palindrome (744343447).

The spelling of 402320243 in words is "four hundred two million, three hundred twenty thousand, two hundred forty-three".