520057240 has 32 divisors (see below), whose sum is σ = 1207877760. Its totient is φ = 201312000.

The previous prime is 520057231. The next prime is 520057249. The reversal of 520057240 is 42750025.

It is an interprime number because it is at equal distance from previous prime (520057231) and next prime (520057249).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520057249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208461 + ... + 210940.

It is an arithmetic number, because the mean of its divisors is an integer number (37746180).

Almost surely, 2^520057240 is an apocalyptic number.

It is an amenable number.

520057240 is an abundant number, since it is smaller than the sum of its proper divisors (687820520).

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

520057240 is a wasteful number, since it uses less digits than its factorization.

520057240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419443 (or 419439 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 520057240 is about 22804.7635374717. The cubic root of 520057240 is about 804.1746565766.

The spelling of 520057240 in words is "five hundred twenty million, fifty-seven thousand, two hundred forty".