537842 has 4 divisors (see below), whose sum is σ = 806766. Its totient is φ = 268920.

The previous prime is 537841. The next prime is 537847. The reversal of 537842 is 248735.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 248735 = 5 ⋅49747.

It can be written as a sum of positive squares in only one way, i.e., 534361 + 3481 = 731^2 + 59^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (537841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134459 + ... + 134462.

2⁵³⁷⁸⁴² is an apocalyptic number.

537842 is a deficient number, since it is larger than the sum of its proper divisors (268924).

537842 is a wasteful number, since it uses less digits than its factorization.

537842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268923.

The product of its digits is 6720, while the sum is 29.

The square root of 537842 is about 733.3771199049. The cubic root of 537842 is about 81.3239075045.

The spelling of 537842 in words is "five hundred thirty-seven thousand, eight hundred forty-two".