1438117412 has 24 divisors (see below), whose sum is σ = 2627456832. Its totient is φ = 687447200.

The previous prime is 1438117379. The next prime is 1438117427. The reversal of 1438117412 is 2147118341.

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, 349487 + ... + 353577.

It is an arithmetic number, because the mean of its divisors is an integer number (109477368).

Almost surely, 2^1438117412 is an apocalyptic number.

It is an amenable number.

1438117412 is a deficient number, since it is larger than the sum of its proper divisors (1189339420).

1438117412 is a wasteful number, since it uses less digits than its factorization.

1438117412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7939 (or 7937 counting only the distinct ones).

The product of its digits is 5376, while the sum is 32.

The square root of 1438117412 is about 37922.5185345066. The cubic root of 1438117412 is about 1128.7509136226.

The spelling of 1438117412 in words is "one billion, four hundred thirty-eight million, one hundred seventeen thousand, four hundred twelve".