1138348349 has 16 divisors (see below), whose sum is σ = 1221319680. Its totient is φ = 1057847040.

The previous prime is 1138348297. The next prime is 1138348357. The reversal of 1138348349 is 9438438311.

It is not a de Polignac number, because 1138348349 - 2⁸ = 1138348093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138348369) 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 15 ways as a sum of consecutive naturals, for example, 262769 + ... + 267065.

It is an arithmetic number, because the mean of its divisors is an integer number (76332480).

Almost surely, 2^1138348349 is an apocalyptic number.

1138348349 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1138348349 is a deficient number, since it is larger than the sum of its proper divisors (82971331).

1138348349 is a wasteful number, since it uses less digits than its factorization.

1138348349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4580.

The product of its digits is 248832, while the sum is 44.

The square root of 1138348349 is about 33739.4183263434. The cubic root of 1138348349 is about 1044.1391838064.

The spelling of 1138348349 in words is "one billion, one hundred thirty-eight million, three hundred forty-eight thousand, three hundred forty-nine".