438946 has 16 divisors (see below), whose sum is σ = 694008. Its totient is φ = 208000.

The previous prime is 438941. The next prime is 438953. The reversal of 438946 is 649834.

438946 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 408321 + 30625 = 639^2 + 175^2 .

It is not an unprimeable number, because it can be changed into a prime (438941) by changing a digit.

438946 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, 4296 + ... + 4396.

2⁴³⁸⁹⁴⁶ is an apocalyptic number.

438946 is a deficient number, since it is larger than the sum of its proper divisors (255062).

438946 is a wasteful number, since it uses less digits than its factorization.

438946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197.

The product of its digits is 20736, while the sum is 34.

The square root of 438946 is about 662.5299993208. The cubic root of 438946 is about 75.9982686586.

The spelling of 438946 in words is "four hundred thirty-eight thousand, nine hundred forty-six".