439946013 has 16 divisors (see below), whose sum is σ = 632108736. Its totient is φ = 270568320.

The previous prime is 439946011. The next prime is 439946027. The reversal of 439946013 is 310649934.

It is not a de Polignac number, because 439946013 - 2¹ = 439946011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439946011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96481 + ... + 100937.

It is an arithmetic number, because the mean of its divisors is an integer number (39506796).

Almost surely, 2^439946013 is an apocalyptic number.

It is an amenable number.

439946013 is a deficient number, since it is larger than the sum of its proper divisors (192162723).

439946013 is a wasteful number, since it uses less digits than its factorization.

439946013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7004.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 439946013 is about 20974.8900593066. The cubic root of 439946013 is about 760.5593833050.

The spelling of 439946013 in words is "four hundred thirty-nine million, nine hundred forty-six thousand, thirteen".