1438000158 has 96 divisors (see below), whose sum is σ = 3524843520. Its totient is φ = 389188800.

The previous prime is 1438000141. The next prime is 1438000169. The reversal of 1438000158 is 8510008341.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 736083 + ... + 738033.

It is an arithmetic number, because the mean of its divisors is an integer number (36717120).

Almost surely, 2^1438000158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1438000158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1762421760).

1438000158 is an abundant number, since it is smaller than the sum of its proper divisors (2086843362).

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

1438000158 is a wasteful number, since it uses less digits than its factorization.

1438000158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102 (or 2095 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1438000158 is about 37920.9725349970. The cubic root of 1438000158 is about 1128.7202359798.

Adding to 1438000158 its reverse (8510008341), we get a palindrome (9948008499).

The spelling of 1438000158 in words is "one billion, four hundred thirty-eight million, one hundred fifty-eight", and thus it is an aban number.