326220372 has 30 divisors (see below), whose sum is σ = 852805338. Its totient is φ = 108740016.

The previous prime is 326220371. The next prime is 326220397. The reversal of 326220372 is 273022623.

326220372 is a `hidden beast` number, since 3 + 2 + 622 + 0 + 37 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 232440516 + 93779856 = 15246^2 + 9684^2 .

It is a super-2 number, since 2×326220372² = 212839462215636768, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326220371) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 503103 + ... + 503750.

Almost surely, 2^326220372 is an apocalyptic number.

It is an amenable number.

326220372 is an abundant number, since it is smaller than the sum of its proper divisors (526584966).

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

326220372 is a wasteful number, since it uses less digits than its factorization.

326220372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006869 (or 1006858 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 326220372 is about 18061.5716924082. The cubic root of 326220372 is about 688.3939204617.

Adding to 326220372 its reverse (273022623), we get a palindrome (599242995).

The spelling of 326220372 in words is "three hundred twenty-six million, two hundred twenty thousand, three hundred seventy-two".