501722496 has 288 divisors, whose sum is σ = 1685319480. Its totient is φ = 142049280.

The previous prime is 501722491. The next prime is 501722521. The reversal of 501722496 is 694227105.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 501722496.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501722491) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3662140 + ... + 3662276.

Almost surely, 2^501722496 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 501722496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (842659740).

501722496 is an abundant number, since it is smaller than the sum of its proper divisors (1183596984).

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

501722496 is a wasteful number, since it uses less digits than its factorization.

501722496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 501722496 is about 22399.1628414992. The cubic root of 501722496 is about 794.6109120130.

The spelling of 501722496 in words is "five hundred one million, seven hundred twenty-two thousand, four hundred ninety-six".