1333128238 has 16 divisors (see below), whose sum is σ = 2179464336. Its totient is φ = 607875840.

The previous prime is 1333128233. The next prime is 1333128259. The reversal of 1333128238 is 8328213331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1333128233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306723 + ... + 311038.

It is an arithmetic number, because the mean of its divisors is an integer number (136216521).

Almost surely, 2^1333128238 is an apocalyptic number.

1333128238 is a deficient number, since it is larger than the sum of its proper divisors (846336098).

1333128238 is a wasteful number, since it uses less digits than its factorization.

1333128238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617859.

The product of its digits is 20736, while the sum is 34.

The square root of 1333128238 is about 36512.0286754927. The cubic root of 1333128238 is about 1100.5859792486.

The spelling of 1333128238 in words is "one billion, three hundred thirty-three million, one hundred twenty-eight thousand, two hundred thirty-eight".