326496720 has 120 divisors (see below), whose sum is σ = 1112616288. Its totient is φ = 79143680.

The previous prime is 326496719. The next prime is 326496727. The reversal of 326496720 is 27694623.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326496727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23419 + ... + 34661.

Almost surely, 2^326496720 is an apocalyptic number.

326496720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 326496720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (556308144).

326496720 is an abundant number, since it is smaller than the sum of its proper divisors (786119568).

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

326496720 is a wasteful number, since it uses less digits than its factorization.

326496720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11281 (or 11264 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 326496720 is about 18069.2202377413. The cubic root of 326496720 is about 688.5882498242.

The spelling of 326496720 in words is "three hundred twenty-six million, four hundred ninety-six thousand, seven hundred twenty".