501252240 has 80 divisors (see below), whose sum is σ = 1607486400. Its totient is φ = 129056256.

The previous prime is 501252239. The next prime is 501252277. The reversal of 501252240 is 42252105.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29050 + ... + 42969.

It is an arithmetic number, because the mean of its divisors is an integer number (20093580).

Almost surely, 2^501252240 is an apocalyptic number.

It is an amenable number.

501252240 is an abundant number, since it is smaller than the sum of its proper divisors (1106234160).

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

501252240 is a wasteful number, since it uses less digits than its factorization.

501252240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72064 (or 72058 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 501252240 is about 22388.6632026122. The cubic root of 501252240 is about 794.3625759588.

The spelling of 501252240 in words is "five hundred one million, two hundred fifty-two thousand, two hundred forty".