1438118684 has 12 divisors (see below), whose sum is σ = 2524649064. Its totient is φ = 716790384.

The previous prime is 1438118659. The next prime is 1438118711. The reversal of 1438118684 is 4868118341.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565814 + ... + 568349.

It is an arithmetic number, because the mean of its divisors is an integer number (210387422).

Almost surely, 2^1438118684 is an apocalyptic number.

It is an amenable number.

1438118684 is a deficient number, since it is larger than the sum of its proper divisors (1086530380).

1438118684 is a wasteful number, since it uses less digits than its factorization.

1438118684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134484 (or 1134482 counting only the distinct ones).

The product of its digits is 147456, while the sum is 44.

The square root of 1438118684 is about 37922.5353055410. The cubic root of 1438118684 is about 1128.7512464120.

The spelling of 1438118684 in words is "one billion, four hundred thirty-eight million, one hundred eighteen thousand, six hundred eighty-four".