439211945 has 8 divisors (see below), whose sum is σ = 538268544. Its totient is φ = 343893424.

The previous prime is 439211939. The next prime is 439211947. The reversal of 439211945 is 549112934.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-439211945 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 439211899 and 439211908.

It is not an unprimeable number, because it can be changed into a prime (439211947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 934259 + ... + 934728.

It is an arithmetic number, because the mean of its divisors is an integer number (67283568).

Almost surely, 2^439211945 is an apocalyptic number.

It is an amenable number.

439211945 is a deficient number, since it is larger than the sum of its proper divisors (99056599).

439211945 is a wasteful number, since it uses less digits than its factorization.

439211945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869039.

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

The square root of 439211945 is about 20957.3840209125. The cubic root of 439211945 is about 760.1361396237.

The spelling of 439211945 in words is "four hundred thirty-nine million, two hundred eleven thousand, nine hundred forty-five".