533404240 has 40 divisors (see below), whose sum is σ = 1313119080. Its totient is φ = 200810496.

The previous prime is 533404159. The next prime is 533404241. The reversal of 533404240 is 42404335.

It can be written as a sum of positive squares in 4 ways, for example, as 97930816 + 435473424 = 9896^2 + 20868^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533404241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194745 + ... + 197464.

It is an arithmetic number, because the mean of its divisors is an integer number (32827977).

Almost surely, 2^533404240 is an apocalyptic number.

It is an amenable number.

533404240 is an abundant number, since it is smaller than the sum of its proper divisors (779714840).

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

533404240 is a wasteful number, since it uses less digits than its factorization.

533404240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392239 (or 392233 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 533404240 is about 23095.5458909288. The cubic root of 533404240 is about 810.9962035397.

Adding to 533404240 its reverse (42404335), we get a palindrome (575808575).

The spelling of 533404240 in words is "five hundred thirty-three million, four hundred four thousand, two hundred forty".