501939936 has 96 divisors (see below), whose sum is σ = 1468000800. Its totient is φ = 166855680.

The previous prime is 501939923. The next prime is 501939937. The reversal of 501939936 is 639939105.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 501939891 and 501939900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501939937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491106 + ... + 492126.

It is an arithmetic number, because the mean of its divisors is an integer number (15291675).

Almost surely, 2^501939936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501939936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (734000400).

501939936 is an abundant number, since it is smaller than the sum of its proper divisors (966060864).

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

501939936 is a wasteful number, since it uses less digits than its factorization.

501939936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609 (or 1595 counting only the distinct ones).

The product of its (nonzero) digits is 196830, while the sum is 45.

The square root of 501939936 is about 22404.0160685534. The cubic root of 501939936 is about 794.7256867765.

The spelling of 501939936 in words is "five hundred one million, nine hundred thirty-nine thousand, nine hundred thirty-six".