439870879413 has 24 divisors (see below), whose sum is σ = 726164374208. Its totient is φ = 251344985472.

The previous prime is 439870879391. The next prime is 439870879451. The reversal of 439870879413 is 314978078934.

439870879413 is a `hidden beast` number, since 4 + 398 + 70 + 87 + 94 + 13 = 666.

It is not a de Polignac number, because 439870879413 - 2¹⁰ = 439870878389 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439870879453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1683570 + ... + 1927212.

Almost surely, 2^439870879413 is an apocalyptic number.

It is an amenable number.

439870879413 is a deficient number, since it is larger than the sum of its proper divisors (286293494795).

439870879413 is a wasteful number, since it uses less digits than its factorization.

439870879413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272313 (or 272310 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 63.

The spelling of 439870879413 in words is "four hundred thirty-nine billion, eight hundred seventy million, eight hundred seventy-nine thousand, four hundred thirteen".