323421552 has 80 divisors (see below), whose sum is σ = 934106880. Its totient is φ = 107137728.

The previous prime is 323421541. The next prime is 323421557. The reversal of 323421552 is 255124323.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323421557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69903 + ... + 74385.

It is an arithmetic number, because the mean of its divisors is an integer number (11676336).

Almost surely, 2^323421552 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 323421552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (467053440).

323421552 is an abundant number, since it is smaller than the sum of its proper divisors (610685328).

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

323421552 is a wasteful number, since it uses less digits than its factorization.

323421552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4667 (or 4655 counting only the distinct ones).

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

The square root of 323421552 is about 17983.9248219069. The cubic root of 323421552 is about 686.4195627463.

Adding to 323421552 its reverse (255124323), we get a palindrome (578545875).

It can be divided in two parts, 323 and 421552, that added together give a cube (421875 = 75³).

The spelling of 323421552 in words is "three hundred twenty-three million, four hundred twenty-one thousand, five hundred fifty-two".