1308864040 has 32 divisors (see below), whose sum is σ = 3212667360. Its totient is φ = 475950400.

The previous prime is 1308864019. The next prime is 1308864041. The reversal of 1308864040 is 404688031.

It is a junction number, because it is equal to n+sod(n) for n = 1308863987 and 1308864005.

It is not an unprimeable number, because it can be changed into a prime (1308864041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1486906 + ... + 1487785.

It is an arithmetic number, because the mean of its divisors is an integer number (100395855).

Almost surely, 2^1308864040 is an apocalyptic number.

1308864040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1308864040 is an abundant number, since it is smaller than the sum of its proper divisors (1903803320).

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

1308864040 is a wasteful number, since it uses less digits than its factorization.

1308864040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974713 (or 2974709 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 1308864040 is about 36178.2260482738. The cubic root of 1308864040 is about 1093.8678177736.

The spelling of 1308864040 in words is "one billion, three hundred eight million, eight hundred sixty-four thousand, forty".