455390 has 32 divisors (see below), whose sum is σ = 919296. Its totient is φ = 161280.

The previous prime is 455381. The next prime is 455393. The reversal of 455390 is 93554.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3974 + ... + 4086.

It is an arithmetic number, because the mean of its divisors is an integer number (28728).

2⁴⁵⁵³⁹⁰ is an apocalyptic number.

455390 is an abundant number, since it is smaller than the sum of its proper divisors (463906).

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

455390 is a wasteful number, since it uses less digits than its factorization.

455390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 455390 is about 674.8259034744. The cubic root of 455390 is about 76.9356858818.

The spelling of 455390 in words is "four hundred fifty-five thousand, three hundred ninety".