260965620 has 144 divisors (see below), whose sum is σ = 818737920. Its totient is φ = 67246848.

The previous prime is 260965609. The next prime is 260965631. The reversal of 260965620 is 26569062.

260965620 is a `hidden beast` number, since 2 + 6 + 0 + 96 + 562 + 0 = 666.

260965620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (260965609) and next prime (260965631).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 921999 + ... + 922281.

It is an arithmetic number, because the mean of its divisors is an integer number (5685680).

Almost surely, 2^260965620 is an apocalyptic number.

260965620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260965620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409368960).

260965620 is an abundant number, since it is smaller than the sum of its proper divisors (557772300).

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

260965620 is a wasteful number, since it uses less digits than its factorization.

260965620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 260965620 is about 16154.4303520737. The cubic root of 260965620 is about 639.0395913959.

The spelling of 260965620 in words is "two hundred sixty million, nine hundred sixty-five thousand, six hundred twenty".