520000452 has 48 divisors (see below), whose sum is σ = 1350249600. Its totient is φ = 173063520.

The previous prime is 520000451. The next prime is 520000463. The reversal of 520000452 is 254000025.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (520000451) 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, 73177 + ... + 79967.

It is an arithmetic number, because the mean of its divisors is an integer number (28130200).

Almost surely, 2^520000452 is an apocalyptic number.

It is an amenable number.

520000452 is an abundant number, since it is smaller than the sum of its proper divisors (830249148).

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

520000452 is a wasteful number, since it uses less digits than its factorization.

520000452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7513 (or 7505 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 520000452 is about 22803.5184127362. The cubic root of 520000452 is about 804.1453847136.

Adding to 520000452 its reverse (254000025), we get a palindrome (774000477).

The spelling of 520000452 in words is "five hundred twenty million, four hundred fifty-two", and thus it is an aban number.