755388 has 18 divisors (see below), whose sum is σ = 1909544. Its totient is φ = 251784.

The previous prime is 755387. The next prime is 755393. The reversal of 755388 is 883557.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×755388² = 1141222061088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 20983 = 755388 / (7 + 5 + 5 + 3 + 8 + 8).

It is a nialpdrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 755388.

It is not an unprimeable number, because it can be changed into a prime (755387) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 10456 + ... + 10527.

2⁷⁵⁵³⁸⁸ is an apocalyptic number.

It is an amenable number.

755388 is an abundant number, since it is smaller than the sum of its proper divisors (1154156).

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

755388 is a wasteful number, since it uses less digits than its factorization.

755388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20993 (or 20988 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 755388 is about 869.1306000826. The cubic root of 755388 is about 91.0730806093.

The spelling of 755388 in words is "seven hundred fifty-five thousand, three hundred eighty-eight".