530305278 has 8 divisors (see below), whose sum is σ = 1060610568. Its totient is φ = 176768424.

The previous prime is 530305267. The next prime is 530305309. The reversal of 530305278 is 872503035.

It is a sphenic number, since it is the product of 3 distinct primes.

530305278 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44192101 + ... + 44192112.

It is an arithmetic number, because the mean of its divisors is an integer number (132576321).

Almost surely, 2^530305278 is an apocalyptic number.

530305278 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

530305278 is a wasteful number, since it uses less digits than its factorization.

530305278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88384218.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 530305278 is about 23028.3581264492. The cubic root of 530305278 is about 809.4225819246.

The spelling of 530305278 in words is "five hundred thirty million, three hundred five thousand, two hundred seventy-eight".