517480380 has 96 divisors (see below), whose sum is σ = 1613230080. Its totient is φ = 137712960.

The previous prime is 517480367. The next prime is 517480399. The reversal of 517480380 is 83084715.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 521685 + ... + 522675.

It is an arithmetic number, because the mean of its divisors is an integer number (16804480).

Almost surely, 2^517480380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 517480380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (806615040).

517480380 is an abundant number, since it is smaller than the sum of its proper divisors (1095749700).

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

517480380 is a wasteful number, since it uses less digits than its factorization.

517480380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976 (or 1968 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 517480380 is about 22748.1950932376. The cubic root of 517480380 is about 802.8442404696.

The spelling of 517480380 in words is "five hundred seventeen million, four hundred eighty thousand, three hundred eighty".