520240898 has 8 divisors (see below), whose sum is σ = 795085308. Its totient is φ = 255212464.

The previous prime is 520240891. The next prime is 520240907. The reversal of 520240898 is 898042025.

It can be written as a sum of positive squares in 2 ways, for example, as 448041889 + 72199009 = 21167^2 + 8497^2 .

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

It is not an unprimeable number, because it can be changed into a prime (520240891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2453861 + ... + 2454072.

Almost surely, 2^520240898 is an apocalyptic number.

520240898 is a deficient number, since it is larger than the sum of its proper divisors (274844410).

520240898 is a wasteful number, since it uses less digits than its factorization.

520240898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4907988.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 520240898 is about 22808.7899284464. The cubic root of 520240898 is about 804.2693100847.

It can be divided in two parts, 5202 and 40898, that multiplied together give a square (212751396 = 14586²).

The spelling of 520240898 in words is "five hundred twenty million, two hundred forty thousand, eight hundred ninety-eight".