1438711912 has 32 divisors (see below), whose sum is σ = 2944756800. Its totient is φ = 653529600.

The previous prime is 1438711909. The next prime is 1438711927. The reversal of 1438711912 is 2191178341.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156664 + ... + 165592.

It is an arithmetic number, because the mean of its divisors is an integer number (92023650).

Almost surely, 2^1438711912 is an apocalyptic number.

It is an amenable number.

1438711912 is an abundant number, since it is smaller than the sum of its proper divisors (1506044888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1438711912 is a wasteful number, since it uses less digits than its factorization.

1438711912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10777 (or 10773 counting only the distinct ones).

The product of its digits is 12096, while the sum is 37.

The square root of 1438711912 is about 37930.3560753126. The cubic root of 1438711912 is about 1128.9064294302.

The spelling of 1438711912 in words is "one billion, four hundred thirty-eight million, seven hundred eleven thousand, nine hundred twelve".