533420240 has 20 divisors (see below), whose sum is σ = 1240202244. Its totient is φ = 213368064.

The previous prime is 533420233. The next prime is 533420273. The reversal of 533420240 is 42024335.

533420240 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 182682256 + 350737984 = 13516^2 + 18728^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×533420240³ (a number of 27 digits) contains 333 as substring.

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, 3333797 + ... + 3333956.

Almost surely, 2^533420240 is an apocalyptic number.

It is an amenable number.

533420240 is an abundant number, since it is smaller than the sum of its proper divisors (706782004).

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

533420240 is a wasteful number, since it uses less digits than its factorization.

533420240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6667766 (or 6667760 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 533420240 is about 23095.8922754675. The cubic root of 533420240 is about 811.0043123425.

Adding to 533420240 its reverse (42024335), we get a palindrome (575444575).

The spelling of 533420240 in words is "five hundred thirty-three million, four hundred twenty thousand, two hundred forty".