542492 has 6 divisors (see below), whose sum is σ = 949368. Its totient is φ = 271244.

The previous prime is 542489. The next prime is 542497. The reversal of 542492 is 294245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67808 + ... + 67815.

It is an arithmetic number, because the mean of its divisors is an integer number (158228).

2⁵⁴²⁴⁹² is an apocalyptic number.

It is an amenable number.

542492 is a deficient number, since it is larger than the sum of its proper divisors (406876).

542492 is a wasteful number, since it uses less digits than its factorization.

542492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135627 (or 135625 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 542492 is about 736.5405623589. The cubic root of 542492 is about 81.5576016445.

The spelling of 542492 in words is "five hundred forty-two thousand, four hundred ninety-two".