501744768 has 128 divisors (see below), whose sum is σ = 1544622720. Its totient is φ = 141336576.

The previous prime is 501744751. The next prime is 501744797. The reversal of 501744768 is 867447105.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194946 + ... + 197502.

It is an arithmetic number, because the mean of its divisors is an integer number (12067365).

Almost surely, 2^501744768 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 501744768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (772311360).

501744768 is an abundant number, since it is smaller than the sum of its proper divisors (1042877952).

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

501744768 is a wasteful number, since it uses less digits than its factorization.

501744768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2654 (or 2642 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 501744768 is about 22399.6599974196. The cubic root of 501744768 is about 794.6226697160.

The spelling of 501744768 in words is "five hundred one million, seven hundred forty-four thousand, seven hundred sixty-eight".