520638941 has 8 divisors (see below), whose sum is σ = 530909184. Its totient is φ = 510469200.

The previous prime is 520638917. The next prime is 520638961. The reversal of 520638941 is 149836025.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520638941 - 2²² = 516444637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520638895 and 520638904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520638961) 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, 14621 + ... + 35426.

It is an arithmetic number, because the mean of its divisors is an integer number (66363648).

Almost surely, 2^520638941 is an apocalyptic number.

It is an amenable number.

520638941 is a deficient number, since it is larger than the sum of its proper divisors (10270243).

520638941 is a wasteful number, since it uses less digits than its factorization.

520638941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50251.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 520638941 is about 22817.5139092759. The cubic root of 520638941 is about 804.4743767239.

The spelling of 520638941 in words is "five hundred twenty million, six hundred thirty-eight thousand, nine hundred forty-one".