520936380 has 48 divisors (see below), whose sum is σ = 1620692640. Its totient is φ = 138916224.

The previous prime is 520936379. The next prime is 520936387. The reversal of 520936380 is 83639025.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520936387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 481809 + ... + 482888.

It is an arithmetic number, because the mean of its divisors is an integer number (33764430).

Almost surely, 2^520936380 is an apocalyptic number.

It is an amenable number.

520936380 is an abundant number, since it is smaller than the sum of its proper divisors (1099756260).

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

520936380 is a wasteful number, since it uses less digits than its factorization.

520936380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964715 (or 964707 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 520936380 is about 22824.0307570771. The cubic root of 520936380 is about 804.6275452525.

The spelling of 520936380 in words is "five hundred twenty million, nine hundred thirty-six thousand, three hundred eighty".