1306573040 has 40 divisors (see below), whose sum is σ = 3060996048. Its totient is φ = 518635520.

The previous prime is 1306573039. The next prime is 1306573111. The reversal of 1306573040 is 403756031.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 1306572994 and 1306573012.

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, 51857 + ... + 72816.

Almost surely, 2^1306573040 is an apocalyptic number.

1306573040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1306573040 is an abundant number, since it is smaller than the sum of its proper divisors (1754423008).

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

1306573040 is a wasteful number, since it uses less digits than its factorization.

1306573040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124817 (or 124811 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 1306573040 is about 36146.5494895433. The cubic root of 1306573040 is about 1093.2292195460.

The spelling of 1306573040 in words is "one billion, three hundred six million, five hundred seventy-three thousand, forty".