501930 has 96 divisors (see below), whose sum is σ = 1581120. Its totient is φ = 112320.

The previous prime is 501911. The next prime is 501931. The reversal of 501930 is 39105.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501931) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38604 + ... + 38616.

It is an arithmetic number, because the mean of its divisors is an integer number (16470).

2⁵⁰¹⁹³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (790560).

501930 is an abundant number, since it is smaller than the sum of its proper divisors (1079190).

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

501930 is a wasteful number, since it uses less digits than its factorization.

501930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 18.

The square root of 501930 is about 708.4701828588. The cubic root of 501930 is about 79.4720442825.

It can be divided in two parts, 501 and 930, that added together give a triangular number (1431 = T₅₃).

The spelling of 501930 in words is "five hundred one thousand, nine hundred thirty".