533444840 has 32 divisors (see below), whose sum is σ = 1201387680. Its totient is φ = 213175872.

The previous prime is 533444839. The next prime is 533444843. The reversal of 533444840 is 48444335.

It is a self number, because there is not a number n which added to its sum of digits gives 533444840.

It is not an unprimeable number, because it can be changed into a prime (533444843) 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, 40787 + ... + 52253.

It is an arithmetic number, because the mean of its divisors is an integer number (37543365).

Almost surely, 2^533444840 is an apocalyptic number.

It is an amenable number.

533444840 is an abundant number, since it is smaller than the sum of its proper divisors (667942840).

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

533444840 is a wasteful number, since it uses less digits than its factorization.

533444840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12641 (or 12637 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

The square root of 533444840 is about 23096.4248315621. The cubic root of 533444840 is about 811.0167793107.

The spelling of 533444840 in words is "five hundred thirty-three million, four hundred forty-four thousand, eight hundred forty".