438369 has 8 divisors (see below), whose sum is σ = 597120. Its totient is φ = 285936.

The previous prime is 438341. The next prime is 438377. The reversal of 438369 is 963834.

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

It is not a de Polignac number, because 438369 - 2⁷ = 438241 is a prime.

It is a super-2 number, since 2×438369² = 384334760322, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

438369 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (438329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1414 + ... + 1695.

It is an arithmetic number, because the mean of its divisors is an integer number (74640).

2⁴³⁸³⁶⁹ is an apocalyptic number.

It is an amenable number.

438369 is a deficient number, since it is larger than the sum of its proper divisors (158751).

438369 is a wasteful number, since it uses less digits than its factorization.

438369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159.

The product of its digits is 15552, while the sum is 33.

The square root of 438369 is about 662.0944041449. The cubic root of 438369 is about 75.9649538323.

The spelling of 438369 in words is "four hundred thirty-eight thousand, three hundred sixty-nine".