324402223421 has 8 divisors (see below), whose sum is σ = 324838726104. Its totient is φ = 323965823040.

The previous prime is 324402223403. The next prime is 324402223429. The reversal of 324402223421 is 124322204423.

It can be written as a sum of positive squares in 4 ways, for example, as 169300154521 + 155102068900 = 411461^2 + 393830^2 .

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 324402223421 - 2²⁶ = 324335114557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324402223429) 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, 7970495 + ... + 8011091.

It is an arithmetic number, because the mean of its divisors is an integer number (40604840763).

Almost surely, 2^324402223421 is an apocalyptic number.

It is an amenable number.

324402223421 is a deficient number, since it is larger than the sum of its proper divisors (436502683).

324402223421 is an equidigital number, since it uses as much as digits as its factorization.

324402223421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51151.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 324402223421 its reverse (124322204423), we get a palindrome (448724427844).

The spelling of 324402223421 in words is "three hundred twenty-four billion, four hundred two million, two hundred twenty-three thousand, four hundred twenty-one".