755490 has 16 divisors (see below), whose sum is σ = 1813248. Its totient is φ = 201456.

The previous prime is 755483. The next prime is 755509. The reversal of 755490 is 94557.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 25183 = 755490 / (7 + 5 + 5 + 4 + 9 + 0).

It is a nialpdrome in base 15 and base 16.

It is a congruent number.

It is an unprimeable number.

755490 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12562 + ... + 12621.

It is an arithmetic number, because the mean of its divisors is an integer number (113328).

2⁷⁵⁵⁴⁹⁰ is an apocalyptic number.

755490 is an abundant number, since it is smaller than the sum of its proper divisors (1057758).

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

755490 is a wasteful number, since it uses less digits than its factorization.

755490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25193.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 755490 is about 869.1892774304. The cubic root of 755490 is about 91.0771796225.

It can be divided in two parts, 75 and 5490, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 755490 in words is "seven hundred fifty-five thousand, four hundred ninety".