1380999807 has 64 divisors (see below), whose sum is σ = 2331648000. Its totient is φ = 800150400.

The previous prime is 1380999799. The next prime is 1380999817. The reversal of 1380999807 is 7089990831.

It is not a de Polignac number, because 1380999807 - 2³ = 1380999799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380999817) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 938082 + ... + 939552.

It is an arithmetic number, because the mean of its divisors is an integer number (36432000).

Almost surely, 2^1380999807 is an apocalyptic number.

1380999807 is a deficient number, since it is larger than the sum of its proper divisors (950648193).

1380999807 is a wasteful number, since it uses less digits than its factorization.

1380999807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629 (or 1623 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 54.

The square root of 1380999807 is about 37161.8057553720. The cubic root of 1380999807 is about 1113.6050865204.

The spelling of 1380999807 in words is "one billion, three hundred eighty million, nine hundred ninety-nine thousand, eight hundred seven".