533388820 has 24 divisors (see below), whose sum is σ = 1141253064. Its totient is φ = 209329536.

The previous prime is 533388811. The next prime is 533388829. The reversal of 533388820 is 28883335.

It is an interprime number because it is at equal distance from previous prime (533388811) and next prime (533388829).

It can be written as a sum of positive squares in 4 ways, for example, as 237961476 + 295427344 = 15426^2 + 17188^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533388829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250539 + ... + 252658.

It is an arithmetic number, because the mean of its divisors is an integer number (47552211).

Almost surely, 2^533388820 is an apocalyptic number.

It is an amenable number.

533388820 is an abundant number, since it is smaller than the sum of its proper divisors (607864244).

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

533388820 is a wasteful number, since it uses less digits than its factorization.

533388820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503259 (or 503257 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 533388820 is about 23095.2120579136. The cubic root of 533388820 is about 810.9883885274.

The spelling of 533388820 in words is "five hundred thirty-three million, three hundred eighty-eight thousand, eight hundred twenty".