501250140 has 96 divisors (see below), whose sum is σ = 1595784960. Its totient is φ = 130552128.

The previous prime is 501250121. The next prime is 501250157. The reversal of 501250140 is 41052105.

501250140 is a `hidden beast` number, since 501 + 25 + 0 + 140 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12427 + ... + 34013.

It is an arithmetic number, because the mean of its divisors is an integer number (16622760).

Almost surely, 2^501250140 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 501250140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (797892480).

501250140 is an abundant number, since it is smaller than the sum of its proper divisors (1094534820).

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

501250140 is a wasteful number, since it uses less digits than its factorization.

501250140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21648 (or 21640 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 501250140 is about 22388.6163038273. The cubic root of 501250140 is about 794.3614666279.

The spelling of 501250140 in words is "five hundred one million, two hundred fifty thousand, one hundred forty".