533681920 has 72 divisors (see below), whose sum is σ = 1283599296. Its totient is φ = 212594688.

The previous prime is 533681887. The next prime is 533681921. The reversal of 533681920 is 29186335.

It is a self number, because there is not a number n which added to its sum of digits gives 533681920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533681921) 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, 374329 + ... + 375751.

It is an arithmetic number, because the mean of its divisors is an integer number (17827768).

Almost surely, 2^533681920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 533681920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641799648).

533681920 is an abundant number, since it is smaller than the sum of its proper divisors (749917376).

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

533681920 is a wasteful number, since it uses less digits than its factorization.

533681920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737 (or 1723 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 533681920 is about 23101.5566575069. The cubic root of 533681920 is about 811.1369088074.

The spelling of 533681920 in words is "five hundred thirty-three million, six hundred eighty-one thousand, nine hundred twenty".