533871440 has 40 divisors (see below), whose sum is σ = 1284058440. Its totient is φ = 206183936.

The previous prime is 533871439. The next prime is 533871461. The reversal of 533871440 is 44178335.

It can be written as a sum of positive squares in 4 ways, for example, as 207129664 + 326741776 = 14392^2 + 18076^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 533871440.

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, 112739 + ... + 117378.

It is an arithmetic number, because the mean of its divisors is an integer number (32101461).

Almost surely, 2^533871440 is an apocalyptic number.

It is an amenable number.

533871440 is an abundant number, since it is smaller than the sum of its proper divisors (750187000).

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

533871440 is a wasteful number, since it uses less digits than its factorization.

533871440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230159 (or 230153 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 533871440 is about 23105.6581814931. The cubic root of 533871440 is about 811.2329138545.

The spelling of 533871440 in words is "five hundred thirty-three million, eight hundred seventy-one thousand, four hundred forty".