260646620 has 24 divisors (see below), whose sum is σ = 589462944. Its totient is φ = 96238656.

The previous prime is 260646613. The next prime is 260646653. The reversal of 260646620 is 26646062.

It is a congruent number.

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, 500984 + ... + 501503.

It is an arithmetic number, because the mean of its divisors is an integer number (24560956).

Almost surely, 2^260646620 is an apocalyptic number.

260646620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260646620 is an abundant number, since it is smaller than the sum of its proper divisors (328816324).

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

260646620 is a wasteful number, since it uses less digits than its factorization.

260646620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002509 (or 1002507 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 260646620 is about 16144.5538804886. The cubic root of 260646620 is about 638.7791014655.

The spelling of 260646620 in words is "two hundred sixty million, six hundred forty-six thousand, six hundred twenty".