502251840 has 196 divisors, whose sum is σ = 1793993364. Its totient is φ = 133871616.

The previous prime is 502251839. The next prime is 502251847. The reversal of 502251840 is 48152205.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 98724096 + 403527744 = 9936^2 + 20088^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (502251847) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 232204 + ... + 234356.

Almost surely, 2^502251840 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 502251840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (896996682).

502251840 is an abundant number, since it is smaller than the sum of its proper divisors (1291741524).

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

502251840 is an equidigital number, since it uses as much as digits as its factorization.

502251840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188 (or 2163 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 502251840 is about 22410.9758823662. The cubic root of 502251840 is about 794.8902660930.

The spelling of 502251840 in words is "five hundred two million, two hundred fifty-one thousand, eight hundred forty".