1438022159 has 12 divisors (see below), whose sum is σ = 1730485800. Its totient is φ = 1190086128.

The previous prime is 1438022149. The next prime is 1438022171. The reversal of 1438022159 is 9512208341.

It is not a de Polignac number, because 1438022159 - 2²⁸ = 1169586703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438022119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 504569 + ... + 507410.

It is an arithmetic number, because the mean of its divisors is an integer number (144207150).

Almost surely, 2^1438022159 is an apocalyptic number.

1438022159 is a deficient number, since it is larger than the sum of its proper divisors (292463641).

1438022159 is a wasteful number, since it uses less digits than its factorization.

1438022159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012022 (or 1012015 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1438022159 is about 37921.2626240214. The cubic root of 1438022159 is about 1128.7259923183.

The spelling of 1438022159 in words is "one billion, four hundred thirty-eight million, twenty-two thousand, one hundred fifty-nine".