535659640 has 32 divisors (see below), whose sum is σ = 1223228880. Its totient is φ = 211064832.

The previous prime is 535659623. The next prime is 535659653. The reversal of 535659640 is 46956535.

535659640 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97257 + ... + 102616.

Almost surely, 2^535659640 is an apocalyptic number.

It is an amenable number.

535659640 is an abundant number, since it is smaller than the sum of its proper divisors (687569240).

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

535659640 is a wasteful number, since it uses less digits than its factorization.

535659640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199951 (or 199947 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 43.

The square root of 535659640 is about 23144.3219818598. The cubic root of 535659640 is about 812.1376448130.

The spelling of 535659640 in words is "five hundred thirty-five million, six hundred fifty-nine thousand, six hundred forty".