1438090516 has 12 divisors (see below), whose sum is σ = 2552104800. Its totient is φ = 708917720.

The previous prime is 1438090513. The next prime is 1438090517. The reversal of 1438090516 is 6150908341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438090513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2531566 + ... + 2532133.

It is an arithmetic number, because the mean of its divisors is an integer number (212675400).

Almost surely, 2^1438090516 is an apocalyptic number.

It is an amenable number.

1438090516 is a deficient number, since it is larger than the sum of its proper divisors (1114014284).

1438090516 is a wasteful number, since it uses less digits than its factorization.

1438090516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063774 (or 5063772 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 1438090516 is about 37922.1639150511. The cubic root of 1438090516 is about 1128.7438768596.

Adding to 1438090516 its reverse (6150908341), we get a palindrome (7588998857).

The spelling of 1438090516 in words is "one billion, four hundred thirty-eight million, ninety thousand, five hundred sixteen".