510042 has 24 divisors (see below), whose sum is σ = 1106784. Its totient is φ = 156624.

The previous prime is 510031. The next prime is 510047. The reversal of 510042 is 240015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (510047) by changing a digit.

510042 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 763 + ... + 1265.

It is an arithmetic number, because the mean of its divisors is an integer number (46116).

2⁵¹⁰⁰⁴² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 510042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (553392).

510042 is an abundant number, since it is smaller than the sum of its proper divisors (596742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

510042 is a wasteful number, since it uses less digits than its factorization.

510042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 510042 is about 714.1722481307. The cubic root of 510042 is about 79.8978905596.

Adding to 510042 its reverse (240015), we get a palindrome (750057).

The spelling of 510042 in words is "five hundred ten thousand, forty-two".