321253452 has 90 divisors (see below), whose sum is σ = 909545868. Its totient is φ = 98830368.

The previous prime is 321253433. The next prime is 321253459. The reversal of 321253452 is 254352123.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (321253459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 51823 + ... + 57689.

Almost surely, 2^321253452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321253452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (454772934).

321253452 is an abundant number, since it is smaller than the sum of its proper divisors (588292416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321253452 is a wasteful number, since it uses less digits than its factorization.

321253452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5909 (or 5885 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 321253452 is about 17923.5446271099. The cubic root of 321253452 is about 684.8822871237.

The spelling of 321253452 in words is "three hundred twenty-one million, two hundred fifty-three thousand, four hundred fifty-two".