660234532 has 24 divisors (see below), whose sum is σ = 1206878400. Its totient is φ = 315633696.

The previous prime is 660234517. The next prime is 660234563. The reversal of 660234532 is 235432066.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 660234494 and 660234503.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15682 + ... + 39577.

It is an arithmetic number, because the mean of its divisors is an integer number (50286600).

Almost surely, 2^660234532 is an apocalyptic number.

It is an amenable number.

660234532 is a deficient number, since it is larger than the sum of its proper divisors (546643868).

660234532 is a wasteful number, since it uses less digits than its factorization.

660234532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55395 (or 55393 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 660234532 is about 25695.0293247546. The cubic root of 660234532 is about 870.7618868749.

Adding to 660234532 its reverse (235432066), we get a palindrome (895666598).

The spelling of 660234532 in words is "six hundred sixty million, two hundred thirty-four thousand, five hundred thirty-two".