326240420 has 48 divisors (see below), whose sum is σ = 758576448. Its totient is φ = 116856960.

The previous prime is 326240413. The next prime is 326240443. The reversal of 326240420 is 24042623.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3674 + ... + 25806.

It is an arithmetic number, because the mean of its divisors is an integer number (15803676).

Almost surely, 2^326240420 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 326240420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379288224).

326240420 is an abundant number, since it is smaller than the sum of its proper divisors (432336028).

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

326240420 is a wasteful number, since it uses less digits than its factorization.

326240420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22220 (or 22218 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 326240420 is about 18062.1266743426. The cubic root of 326240420 is about 688.4080220117.

The spelling of 326240420 in words is "three hundred twenty-six million, two hundred forty thousand, four hundred twenty".