1306726560 has 96 divisors (see below), whose sum is σ = 4573558080. Its totient is φ = 348459264.

The previous prime is 1306726549. The next prime is 1306726591. The reversal of 1306726560 is 656276031.

1306726560 is a `hidden beast` number, since 1 + 30 + 67 + 2 + 6 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

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

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, 146922 + ... + 155561.

It is an arithmetic number, because the mean of its divisors is an integer number (47641230).

Almost surely, 2^1306726560 is an apocalyptic number.

1306726560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1306726560 is an abundant number, since it is smaller than the sum of its proper divisors (3266831520).

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

1306726560 is a wasteful number, since it uses less digits than its factorization.

1306726560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302507 (or 302493 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 1306726560 is about 36148.6730046900. The cubic root of 1306726560 is about 1093.2720353630.

The spelling of 1306726560 in words is "one billion, three hundred six million, seven hundred twenty-six thousand, five hundred sixty".