501240528 has 40 divisors (see below), whose sum is σ = 1438747200. Its totient is φ = 167080032.

The previous prime is 501240521. The next prime is 501240583. The reversal of 501240528 is 825042105.

It is a happy number.

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 (501240521) by changing a digit.

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, 579708 + ... + 580571.

It is an arithmetic number, because the mean of its divisors is an integer number (35968680).

Almost surely, 2^501240528 is an apocalyptic number.

It is an amenable number.

501240528 is an abundant number, since it is smaller than the sum of its proper divisors (937506672).

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

501240528 is a wasteful number, since it uses less digits than its factorization.

501240528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160296 (or 1160284 counting only the distinct ones).

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

The square root of 501240528 is about 22388.4016401350. The cubic root of 501240528 is about 794.3563890225.

The spelling of 501240528 in words is "five hundred one million, two hundred forty thousand, five hundred twenty-eight".