326144631 has 16 divisors (see below), whose sum is σ = 438092928. Its totient is φ = 215820000.

The previous prime is 326144597. The next prime is 326144653. The reversal of 326144631 is 136441623.

It is not a de Polignac number, because 326144631 - 2⁷ = 326144503 is a prime.

It is a super-2 number, since 2×326144631² = 212740640660252322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326144431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298396 + ... + 299486.

It is an arithmetic number, because the mean of its divisors is an integer number (27380808).

Almost surely, 2^326144631 is an apocalyptic number.

326144631 is a deficient number, since it is larger than the sum of its proper divisors (111948297).

326144631 is a wasteful number, since it uses less digits than its factorization.

326144631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742.

The product of its digits is 10368, while the sum is 30.

The square root of 326144631 is about 18059.4748262512. The cubic root of 326144631 is about 688.3406398329.

The spelling of 326144631 in words is "three hundred twenty-six million, one hundred forty-four thousand, six hundred thirty-one".