326731265 has 12 divisors (see below), whose sum is σ = 456090516. Its totient is φ = 224044128.

The previous prime is 326731259. The next prime is 326731297. The reversal of 326731265 is 562137623.

It can be written as a sum of positive squares in 2 ways, for example, as 54745201 + 271986064 = 7399^2 + 16492^2 .

It is not a de Polignac number, because 326731265 - 2¹⁴ = 326714881 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 666554 + ... + 667043.

It is an arithmetic number, because the mean of its divisors is an integer number (38007543).

Almost surely, 2^326731265 is an apocalyptic number.

326731265 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

326731265 is a deficient number, since it is larger than the sum of its proper divisors (129359251).

326731265 is a wasteful number, since it uses less digits than its factorization.

326731265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333616 (or 1333609 counting only the distinct ones).

The product of its digits is 45360, while the sum is 35.

The square root of 326731265 is about 18075.7092530279. The cubic root of 326731265 is about 688.7530970883.

Adding to 326731265 its reverse (562137623), we get a palindrome (888868888).

The spelling of 326731265 in words is "three hundred twenty-six million, seven hundred thirty-one thousand, two hundred sixty-five".