538742 has 8 divisors (see below), whose sum is σ = 813456. Its totient is φ = 267592.

The previous prime is 538739. The next prime is 538751. The reversal of 538742 is 247835.

It is a happy number.

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

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473 + ... + 1140.

It is an arithmetic number, because the mean of its divisors is an integer number (101682).

2⁵³⁸⁷⁴² is an apocalyptic number.

538742 is a deficient number, since it is larger than the sum of its proper divisors (274714).

538742 is a wasteful number, since it uses less digits than its factorization.

538742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782.

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

The square root of 538742 is about 733.9904631533. The cubic root of 538742 is about 81.3692434517.

The spelling of 538742 in words is "five hundred thirty-eight thousand, seven hundred forty-two".