332491 has 4 divisors (see below), whose sum is σ = 334152. Its totient is φ = 330832.

The previous prime is 332489. The next prime is 332509. The reversal of 332491 is 194233.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 332491 - 2¹ = 332489 is a prime.

It is a super-4 number, since 4×332491⁴ (a number of 23 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (332411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481 + ... + 946.

It is an arithmetic number, because the mean of its divisors is an integer number (83538).

2³³²⁴⁹¹ is an apocalyptic number.

332491 is a deficient number, since it is larger than the sum of its proper divisors (1661).

332491 is a wasteful number, since it uses less digits than its factorization.

332491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660.

The product of its digits is 648, while the sum is 22.

The square root of 332491 is about 576.6203256910. The cubic root of 332491 is about 69.2776740388.

The spelling of 332491 in words is "three hundred thirty-two thousand, four hundred ninety-one".