755403138 has 96 divisors (see below), whose sum is σ = 1960767360. Its totient is φ = 211118400.

The previous prime is 755403119. The next prime is 755403149. The reversal of 755403138 is 831304557.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4173408 + ... + 4173588.

It is an arithmetic number, because the mean of its divisors is an integer number (20424660).

Almost surely, 2^755403138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 755403138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (980383680).

755403138 is an abundant number, since it is smaller than the sum of its proper divisors (1205364222).

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

755403138 is a wasteful number, since it uses less digits than its factorization.

755403138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 755403138 is about 27484.5981960807. The cubic root of 755403138 is about 910.7368897444.

The spelling of 755403138 in words is "seven hundred fifty-five million, four hundred three thousand, one hundred thirty-eight".