532742640 has 80 divisors (see below), whose sum is σ = 1657798656. Its totient is φ = 141523200.

The previous prime is 532742633. The next prime is 532742641. The reversal of 532742640 is 46247235.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (532742641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60945 + ... + 69135.

Almost surely, 2^532742640 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 532742640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (828899328).

532742640 is an abundant number, since it is smaller than the sum of its proper divisors (1125056016).

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

532742640 is a wasteful number, since it uses less digits than its factorization.

532742640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8478 (or 8472 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 532742640 is about 23081.2183387273. The cubic root of 532742640 is about 810.6607624633.

Adding to 532742640 its reverse (46247235), we get a palindrome (578989875).

The spelling of 532742640 in words is "five hundred thirty-two million, seven hundred forty-two thousand, six hundred forty".