439140240 has 360 divisors, whose sum is σ = 1859577408. Its totient is φ = 90224640.

The previous prime is 439140239. The next prime is 439140241. The reversal of 439140240 is 42041934.

It is an interprime number because it is at equal distance from previous prime (439140239) and next prime (439140241).

It is a tau number, because it is divible by the number of its divisors (360).

It is not an unprimeable number, because it can be changed into a prime (439140241) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4934116 + ... + 4934204.

Almost surely, 2^439140240 is an apocalyptic number.

439140240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 439140240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (929788704).

439140240 is an abundant number, since it is smaller than the sum of its proper divisors (1420437168).

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

439140240 is a wasteful number, since it uses less digits than its factorization.

439140240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 439140240 is about 20955.6732175323. The cubic root of 439140240 is about 760.0947711918.

The spelling of 439140240 in words is "four hundred thirty-nine million, one hundred forty thousand, two hundred forty".