344628 has 24 divisors (see below), whose sum is σ = 893760. Its totient is φ = 114840.

The previous prime is 344621. The next prime is 344629. The reversal of 344628 is 826443.

344628 is a `hidden beast` number, since 34 + 4 + 628 = 666.

344628 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344621) by changing a digit.

344628 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1488 + ... + 1703.

It is an arithmetic number, because the mean of its divisors is an integer number (37240).

2³⁴⁴⁶²⁸ is an apocalyptic number.

It is an amenable number.

344628 is an abundant number, since it is smaller than the sum of its proper divisors (549132).

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

344628 is a wasteful number, since it uses less digits than its factorization.

344628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3204 (or 3196 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 344628 is about 587.0502533855. The cubic root of 344628 is about 70.1105735429.

The spelling of 344628 in words is "three hundred forty-four thousand, six hundred twenty-eight".