438346 has 8 divisors (see below), whose sum is σ = 668484. Its totient is φ = 215520.

The previous prime is 438341. The next prime is 438377. The reversal of 438346 is 643834.

438346 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 2 ways, for example, as 373321 + 65025 = 611^2 + 255^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (438341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1675 + ... + 1918.

2⁴³⁸³⁴⁶ is an apocalyptic number.

438346 is a deficient number, since it is larger than the sum of its proper divisors (230138).

438346 is a wasteful number, since it uses less digits than its factorization.

438346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3656.

The product of its digits is 6912, while the sum is 28.

The square root of 438346 is about 662.0770347928. The cubic root of 438346 is about 75.9636252526.

It can be divided in two parts, 438 and 346, that added together give a square (784 = 28²).

The spelling of 438346 in words is "four hundred thirty-eight thousand, three hundred forty-six".