439242975 has 18 divisors (see below), whose sum is σ = 786733376. Its totient is φ = 234262800.

The previous prime is 439242943. The next prime is 439242977. The reversal of 439242975 is 579242934.

It is not a de Polignac number, because 439242975 - 2⁵ = 439242943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 439242975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439242977) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 975871 + ... + 976320.

Almost surely, 2^439242975 is an apocalyptic number.

439242975 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

439242975 is a deficient number, since it is larger than the sum of its proper divisors (347490401).

439242975 is a wasteful number, since it uses less digits than its factorization.

439242975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952207 (or 1952199 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 439242975 is about 20958.1243197000. The cubic root of 439242975 is about 760.1540402214.

The spelling of 439242975 in words is "four hundred thirty-nine million, two hundred forty-two thousand, nine hundred seventy-five".