518398272 has 224 divisors, whose sum is σ = 1844893440. Its totient is φ = 139345920.

The previous prime is 518398271. The next prime is 518398277. The reversal of 518398272 is 272893815.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518398271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204372 + ... + 206892.

Almost surely, 2^518398272 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 518398272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (922446720).

518398272 is an abundant number, since it is smaller than the sum of its proper divisors (1326495168).

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

518398272 is a wasteful number, since it uses less digits than its factorization.

518398272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566 (or 2550 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 518398272 is about 22768.3612058488. The cubic root of 518398272 is about 803.3186475203.

The spelling of 518398272 in words is "five hundred eighteen million, three hundred ninety-eight thousand, two hundred seventy-two".