326445504 has 224 divisors, whose sum is σ = 1095524352. Its totient is φ = 83328000.

The previous prime is 326445481. The next prime is 326445523. The reversal of 326445504 is 405544623.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1049509 + ... + 1049819.

Almost surely, 2^326445504 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 326445504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547762176).

326445504 is an abundant number, since it is smaller than the sum of its proper divisors (769078848).

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

326445504 is a wasteful number, since it uses less digits than its factorization.

326445504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

The square root of 326445504 is about 18067.8029654964. The cubic root of 326445504 is about 688.5522427447.

The spelling of 326445504 in words is "three hundred twenty-six million, four hundred forty-five thousand, five hundred four".