326431642 has 8 divisors (see below), whose sum is σ = 490784832. Its totient is φ = 162836700.

The previous prime is 326431597. The next prime is 326431667. The reversal of 326431642 is 246134623.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×326431642³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188484 + ... + 190207.

It is an arithmetic number, because the mean of its divisors is an integer number (61348104).

Almost surely, 2^326431642 is an apocalyptic number.

326431642 is a deficient number, since it is larger than the sum of its proper divisors (164353190).

326431642 is a wasteful number, since it uses less digits than its factorization.

326431642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379124.

The product of its digits is 20736, while the sum is 31.

The square root of 326431642 is about 18067.4193508647. The cubic root of 326431642 is about 688.5424965072.

The spelling of 326431642 in words is "three hundred twenty-six million, four hundred thirty-one thousand, six hundred forty-two".