324406253 has 4 divisors (see below), whose sum is σ = 324774528. Its totient is φ = 324037980.

The previous prime is 324406231. The next prime is 324406297. The reversal of 324406253 is 352604423.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 352604423 = 3917 ⋅90019.

It is a cyclic number.

It is not a de Polignac number, because 324406253 - 2¹⁸ = 324144109 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 (324406213) 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, 182813 + ... + 184578.

It is an arithmetic number, because the mean of its divisors is an integer number (81193632).

Almost surely, 2^324406253 is an apocalyptic number.

It is an amenable number.

324406253 is a deficient number, since it is larger than the sum of its proper divisors (368275).

324406253 is an equidigital number, since it uses as much as digits as its factorization.

324406253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368274.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 324406253 is about 18011.2812703594. The cubic root of 324406253 is about 687.1154895831.

The spelling of 324406253 in words is "three hundred twenty-four million, four hundred six thousand, two hundred fifty-three".