1307394040 has 32 divisors (see below), whose sum is σ = 2952845280. Its totient is φ = 520964992.

The previous prime is 1307393977. The next prime is 1307394041. The reversal of 1307394040 is 404937031.

It is a junction number, because it is equal to n+sod(n) for n = 1307393993 and 1307394011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307394041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51619 + ... + 72658.

It is an arithmetic number, because the mean of its divisors is an integer number (92276415).

Almost surely, 2^1307394040 is an apocalyptic number.

1307394040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1307394040 is an abundant number, since it is smaller than the sum of its proper divisors (1645451240).

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

1307394040 is a wasteful number, since it uses less digits than its factorization.

1307394040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124551 (or 124547 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 1307394040 is about 36157.9042534271. The cubic root of 1307394040 is about 1093.4581525980.

The spelling of 1307394040 in words is "one billion, three hundred seven million, three hundred ninety-four thousand, forty".