510402042 has 48 divisors (see below), whose sum is σ = 1147760640. Its totient is φ = 163749600.

The previous prime is 510402029. The next prime is 510402049. The reversal of 510402042 is 240204015.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (510402049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104184 + ... + 108972.

It is an arithmetic number, because the mean of its divisors is an integer number (23911680).

Almost surely, 2^510402042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 510402042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573880320).

510402042 is an abundant number, since it is smaller than the sum of its proper divisors (637358598).

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

510402042 is a wasteful number, since it uses less digits than its factorization.

510402042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5019 (or 5016 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 510402042 is about 22592.0791871842. The cubic root of 510402042 is about 799.1668628627.

Adding to 510402042 its reverse (240204015), we get a palindrome (750606057).

The spelling of 510402042 in words is "five hundred ten million, four hundred two thousand, forty-two".