260964720 has 80 divisors (see below), whose sum is σ = 898885920. Its totient is φ = 69590016.

The previous prime is 260964719. The next prime is 260964731. The reversal of 260964720 is 27469062.

It is a happy number.

260964720 is a `hidden beast` number, since 2 + 6 + 0 + 9 + 647 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 58249 + ... + 62568.

It is an arithmetic number, because the mean of its divisors is an integer number (11236074).

Almost surely, 2^260964720 is an apocalyptic number.

260964720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260964720 is an abundant number, since it is smaller than the sum of its proper divisors (637921200).

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

260964720 is a wasteful number, since it uses less digits than its factorization.

260964720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120839 (or 120827 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 260964720 is about 16154.4024959142. The cubic root of 260964720 is about 639.0388567700.

The spelling of 260964720 in words is "two hundred sixty million, nine hundred sixty-four thousand, seven hundred twenty".