533376640 has 64 divisors (see below), whose sum is σ = 1279404360. Its totient is φ = 212631552.

The previous prime is 533376593. The next prime is 533376643. The reversal of 533376640 is 46673335.

It can be written as a sum of positive squares in 4 ways, for example, as 430313536 + 103063104 = 20744^2 + 10152^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 533376640.

It is not an unprimeable number, because it can be changed into a prime (533376643) 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, 214444 + ... + 216916.

Almost surely, 2^533376640 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 533376640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (639702180).

533376640 is an abundant number, since it is smaller than the sum of its proper divisors (746027720).

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

533376640 is a wasteful number, since it uses less digits than its factorization.

533376640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2829 (or 2817 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 37.

The square root of 533376640 is about 23094.9483653893. The cubic root of 533376640 is about 810.9822154736.

The spelling of 533376640 in words is "five hundred thirty-three million, three hundred seventy-six thousand, six hundred forty".