260640132 has 24 divisors (see below), whose sum is σ = 609230496. Its totient is φ = 86727168.

The previous prime is 260640109. The next prime is 260640179. The reversal of 260640132 is 231046062.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11898 + ... + 25745.

It is an arithmetic number, because the mean of its divisors is an integer number (25384604).

Almost surely, 2^260640132 is an apocalyptic number.

It is an amenable number.

260640132 is an abundant number, since it is smaller than the sum of its proper divisors (348590364).

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

260640132 is a wasteful number, since it uses less digits than its factorization.

260640132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38227 (or 38225 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 260640132 is about 16144.3529446057. The cubic root of 260640132 is about 638.7738012712.

Adding to 260640132 its reverse (231046062), we get a palindrome (491686194).

The spelling of 260640132 in words is "two hundred sixty million, six hundred forty thousand, one hundred thirty-two".