1382888691 has 6 divisors (see below), whose sum is σ = 1997505900. Its totient is φ = 921925788.

The previous prime is 1382888687. The next prime is 1382888699. The reversal of 1382888691 is 1968882831.

It is not a de Polignac number, because 1382888691 - 2² = 1382888687 is a prime.

It is a super-2 number, since 2×1382888691² = 3824762263391386962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1382888699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76827141 + ... + 76827158.

It is an arithmetic number, because the mean of its divisors is an integer number (332917650).

Almost surely, 2^1382888691 is an apocalyptic number.

1382888691 is a deficient number, since it is larger than the sum of its proper divisors (614617209).

1382888691 is a wasteful number, since it uses less digits than its factorization.

1382888691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153654305 (or 153654302 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 54.

The square root of 1382888691 is about 37187.2113904767. The cubic root of 1382888691 is about 1114.1125721187.

The spelling of 1382888691 in words is "one billion, three hundred eighty-two million, eight hundred eighty-eight thousand, six hundred ninety-one".