533135440 has 40 divisors (see below), whose sum is σ = 1304782560. Its totient is φ = 202029696.

The previous prime is 533135437. The next prime is 533135441. The reversal of 533135440 is 44531335.

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

It is a junction number, because it is equal to n+sod(n) for n = 533135399 and 533135408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533135441) 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, 173854 + ... + 176893.

It is an arithmetic number, because the mean of its divisors is an integer number (32619564).

Almost surely, 2^533135440 is an apocalyptic number.

It is an amenable number.

533135440 is an abundant number, since it is smaller than the sum of its proper divisors (771647120).

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

533135440 is a wasteful number, since it uses less digits than its factorization.

533135440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350779 (or 350773 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 533135440 is about 23089.7258537212. The cubic root of 533135440 is about 810.8599513993.

Adding to 533135440 its reverse (44531335), we get a palindrome (577666775).

The spelling of 533135440 in words is "five hundred thirty-three million, one hundred thirty-five thousand, four hundred forty".