1438833828 has 48 divisors (see below), whose sum is σ = 3641488704. Its totient is φ = 440386560.

The previous prime is 1438833713. The next prime is 1438833833. The reversal of 1438833828 is 8283388341.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77650 + ... + 94377.

It is an arithmetic number, because the mean of its divisors is an integer number (75864348).

Almost surely, 2^1438833828 is an apocalyptic number.

It is an amenable number.

1438833828 is an abundant number, since it is smaller than the sum of its proper divisors (2202654876).

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

1438833828 is a wasteful number, since it uses less digits than its factorization.

1438833828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172092 (or 172090 counting only the distinct ones).

The product of its digits is 884736, while the sum is 48.

The square root of 1438833828 is about 37931.9631445566. The cubic root of 1438833828 is about 1128.9383162561.

The spelling of 1438833828 in words is "one billion, four hundred thirty-eight million, eight hundred thirty-three thousand, eight hundred twenty-eight".