1380657807 has 12 divisors (see below), whose sum is σ = 1995649344. Its totient is φ = 919808160.

The previous prime is 1380657749. The next prime is 1380657809. The reversal of 1380657807 is 7087560831.

It is not a de Polignac number, because 1380657807 - 2²² = 1376463503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380657809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38463 + ... + 65120.

It is an arithmetic number, because the mean of its divisors is an integer number (166304112).

Almost surely, 2^1380657807 is an apocalyptic number.

1380657807 is a deficient number, since it is larger than the sum of its proper divisors (614991537).

1380657807 is a wasteful number, since it uses less digits than its factorization.

1380657807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105070 (or 105067 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 1380657807 is about 37157.2039717738. The cubic root of 1380657807 is about 1113.5131520680.

The spelling of 1380657807 in words is "one billion, three hundred eighty million, six hundred fifty-seven thousand, eight hundred seven".