1138426816 has 28 divisors (see below), whose sum is σ = 2268790992. Its totient is φ = 566763008.

The previous prime is 1138426801. The next prime is 1138426867. The reversal of 1138426816 is 6186248311.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23260 + ... + 53083.

Almost surely, 2^1138426816 is an apocalyptic number.

1138426816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1138426816 is a deficient number, since it is larger than the sum of its proper divisors (1130364176).

1138426816 is an equidigital number, since it uses as much as digits as its factorization.

1138426816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76588 (or 76578 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 1138426816 is about 33740.5811449655. The cubic root of 1138426816 is about 1044.1631742914.

The spelling of 1138426816 in words is "one billion, one hundred thirty-eight million, four hundred twenty-six thousand, eight hundred sixteen".