438995 has 8 divisors (see below), whose sum is σ = 554640. Its totient is φ = 332640.

The previous prime is 438989. The next prime is 439007. The reversal of 438995 is 599834.

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

It is not a de Polignac number, because 438995 - 2⁴ = 438979 is a prime.

It is a super-2 number, since 2×438995² = 385433220050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2216 + ... + 2405.

It is an arithmetic number, because the mean of its divisors is an integer number (69330).

2⁴³⁸⁹⁹⁵ is an apocalyptic number.

438995 is a deficient number, since it is larger than the sum of its proper divisors (115645).

438995 is a wasteful number, since it uses less digits than its factorization.

438995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4645.

The product of its digits is 38880, while the sum is 38.

The square root of 438995 is about 662.5669777464. The cubic root of 438995 is about 76.0010964754.

The spelling of 438995 in words is "four hundred thirty-eight thousand, nine hundred ninety-five".