326013660 has 324 divisors, whose sum is σ = 1226082312. Its totient is φ = 72503424.

The previous prime is 326013637. The next prime is 326013683. The reversal of 326013660 is 66310623.

It is an interprime number because it is at equal distance from previous prime (326013637) and next prime (326013683).

It is a tau number, because it is divible by the number of its divisors (324).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 8811162 + ... + 8811198.

Almost surely, 2^326013660 is an apocalyptic number.

326013660 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 326013660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (613041156).

326013660 is an abundant number, since it is smaller than the sum of its proper divisors (900068652).

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

326013660 is a wasteful number, since it uses less digits than its factorization.

326013660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 326013660 is about 18055.8483600190. The cubic root of 326013660 is about 688.2484877387.

The spelling of 326013660 in words is "three hundred twenty-six million, thirteen thousand, six hundred sixty".