520453140 has 96 divisors (see below), whose sum is σ = 1521434880. Its totient is φ = 132765696.

The previous prime is 520453133. The next prime is 520453189. The reversal of 520453140 is 41354025.

It is a self number, because there is not a number n which added to its sum of digits gives 520453140.

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, 195297 + ... + 197943.

It is an arithmetic number, because the mean of its divisors is an integer number (15848280).

Almost surely, 2^520453140 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 520453140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (760717440).

520453140 is an abundant number, since it is smaller than the sum of its proper divisors (1000981740).

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

520453140 is a wasteful number, since it uses less digits than its factorization.

520453140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2801 (or 2799 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 520453140 is about 22813.4420901362. The cubic root of 520453140 is about 804.3786674481.

The spelling of 520453140 in words is "five hundred twenty million, four hundred fifty-three thousand, one hundred forty".