520340984 has 8 divisors (see below), whose sum is σ = 975639360. Its totient is φ = 260170488.

The previous prime is 520340969. The next prime is 520340987. The reversal of 520340984 is 489043025.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520340987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32521304 + ... + 32521319.

It is an arithmetic number, because the mean of its divisors is an integer number (121954920).

Almost surely, 2^520340984 is an apocalyptic number.

It is an amenable number.

520340984 is a deficient number, since it is larger than the sum of its proper divisors (455298376).

520340984 is a wasteful number, since it uses less digits than its factorization.

520340984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65042629 (or 65042625 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 520340984 is about 22810.9838455074. The cubic root of 520340984 is about 804.3208829470.

The spelling of 520340984 in words is "five hundred twenty million, three hundred forty thousand, nine hundred eighty-four".