501898240 has 88 divisors (see below), whose sum is σ = 1224466272. Its totient is φ = 197345280.

The previous prime is 501898231. The next prime is 501898283. The reversal of 501898240 is 42898105.

It is a self number, because there is not a number n which added to its sum of digits gives 501898240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311517 + ... + 313123.

Almost surely, 2^501898240 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 501898240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (612233136).

501898240 is an abundant number, since it is smaller than the sum of its proper divisors (722568032).

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

501898240 is a wasteful number, since it uses less digits than its factorization.

501898240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693 (or 1675 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 501898240 is about 22403.0855017785. The cubic root of 501898240 is about 794.7036802923.

The spelling of 501898240 in words is "five hundred one million, eight hundred ninety-eight thousand, two hundred forty".