326107220 has 24 divisors (see below), whose sum is σ = 696054408. Its totient is φ = 128304000.

The previous prime is 326107213. The next prime is 326107231. The reversal of 326107220 is 22701623.

It can be written as a sum of positive squares in 4 ways, for example, as 521284 + 325585936 = 722^2 + 18044^2 .

It is a super-2 number, since 2×326107220² = 212691837872256800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132431 + ... + 134870.

It is an arithmetic number, because the mean of its divisors is an integer number (29002267).

Almost surely, 2^326107220 is an apocalyptic number.

It is an amenable number.

326107220 is an abundant number, since it is smaller than the sum of its proper divisors (369947188).

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

326107220 is a wasteful number, since it uses less digits than its factorization.

326107220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267371 (or 267369 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 326107220 is about 18058.4390244561. The cubic root of 326107220 is about 688.3143197140.

Adding to 326107220 its reverse (22701623), we get a palindrome (348808843).

The spelling of 326107220 in words is "three hundred twenty-six million, one hundred seven thousand, two hundred twenty".