591442 has 8 divisors (see below), whose sum is σ = 895356. Its totient is φ = 292992.

The previous prime is 591431. The next prime is 591443. The reversal of 591442 is 244195.

It can be written as a sum of positive squares in 2 ways, for example, as 591361 + 81 = 769^2 + 9^2 .

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

It is a super-4 number, since 4×591442⁴ (a number of 24 digits) contains 4444 as substring.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (591443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1083 + ... + 1534.

2⁵⁹¹⁴⁴² is an apocalyptic number.

591442 is a deficient number, since it is larger than the sum of its proper divisors (303914).

591442 is a wasteful number, since it uses less digits than its factorization.

591442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732.

The product of its digits is 1440, while the sum is 25.

The square root of 591442 is about 769.0526639964. The cubic root of 591442 is about 83.9403393445.

It can be divided in two parts, 59 and 1442, that multiplied together give a triangular number (85078 = T₄₁₂).

The spelling of 591442 in words is "five hundred ninety-one thousand, four hundred forty-two".