439942134 has 16 divisors (see below), whose sum is σ = 880750080. Its totient is φ = 146503080.

The previous prime is 439942127. The next prime is 439942141. The reversal of 439942134 is 431249934.

It is an interprime number because it is at equal distance from previous prime (439942127) and next prime (439942141).

It is a junction number, because it is equal to n+sod(n) for n = 439942092 and 439942101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29374 + ... + 41745.

It is an arithmetic number, because the mean of its divisors is an integer number (55046880).

Almost surely, 2^439942134 is an apocalyptic number.

439942134 is an abundant number, since it is smaller than the sum of its proper divisors (440807946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

439942134 is a wasteful number, since it uses less digits than its factorization.

439942134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72155.

The product of its digits is 93312, while the sum is 39.

The square root of 439942134 is about 20974.7975913953. The cubic root of 439942134 is about 760.5571480167.

The spelling of 439942134 in words is "four hundred thirty-nine million, nine hundred forty-two thousand, one hundred thirty-four".