520006040 has 32 divisors (see below), whose sum is σ = 1170666000. Its totient is φ = 207886464.

The previous prime is 520006037. The next prime is 520006043. The reversal of 520006040 is 40600025.

It is an interprime number because it is at equal distance from previous prime (520006037) and next prime (520006043).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520006043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128366 + ... + 132354.

Almost surely, 2^520006040 is an apocalyptic number.

It is an amenable number.

520006040 is an abundant number, since it is smaller than the sum of its proper divisors (650659960).

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

520006040 is a wasteful number, since it uses less digits than its factorization.

520006040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7259 (or 7255 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 520006040 is about 22803.6409373591. The cubic root of 520006040 is about 804.1482651908.

Adding to 520006040 its reverse (40600025), we get a palindrome (560606065).

The spelling of 520006040 in words is "five hundred twenty million, six thousand, forty".