533721340 has 24 divisors (see below), whose sum is σ = 1124408880. Its totient is φ = 212803968.

The previous prime is 533721329. The next prime is 533721359. The reversal of 533721340 is 43127335.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 533721299 and 533721308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36370 + ... + 48889.

It is an arithmetic number, because the mean of its divisors is an integer number (46850370).

Almost surely, 2^533721340 is an apocalyptic number.

It is an amenable number.

533721340 is an abundant number, since it is smaller than the sum of its proper divisors (590687540).

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

533721340 is a wasteful number, since it uses less digits than its factorization.

533721340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85581 (or 85579 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 533721340 is about 23102.4098310111. The cubic root of 533721340 is about 811.1568796481.

Adding to 533721340 its reverse (43127335), we get a palindrome (576848675).

It can be divided in two parts, 533721 and 340, that added together give a triangular number (534061 = T₁₀₃₃).

The spelling of 533721340 in words is "five hundred thirty-three million, seven hundred twenty-one thousand, three hundred forty".