1138364479 has 8 divisors (see below), whose sum is σ = 1305430560. Its totient is φ = 972409056.

The previous prime is 1138364477. The next prime is 1138364503. The reversal of 1138364479 is 9744638311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1138364479 - 2¹ = 1138364477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138364471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275464 + ... + 279565.

It is an arithmetic number, because the mean of its divisors is an integer number (163178820).

Almost surely, 2^1138364479 is an apocalyptic number.

1138364479 is a deficient number, since it is larger than the sum of its proper divisors (167066081).

1138364479 is an equidigital number, since it uses as much as digits as its factorization.

1138364479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555329.

The product of its digits is 435456, while the sum is 46.

The square root of 1138364479 is about 33739.6573634055. The cubic root of 1138364479 is about 1044.1441154795.

The spelling of 1138364479 in words is "one billion, one hundred thirty-eight million, three hundred sixty-four thousand, four hundred seventy-nine".