439973960 has 32 divisors (see below), whose sum is σ = 991078200. Its totient is φ = 175787520.

The previous prime is 439973959. The next prime is 439973981. The reversal of 439973960 is 69379934.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 438567364 + 1406596 = 20942^2 + 1186^2 .

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 439973899 and 439973908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31796 + ... + 43484.

Almost surely, 2^439973960 is an apocalyptic number.

439973960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

439973960 is an abundant number, since it is smaller than the sum of its proper divisors (551104240).

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

439973960 is a wasteful number, since it uses less digits than its factorization.

439973960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12641 (or 12637 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 50.

The square root of 439973960 is about 20975.5562500736. The cubic root of 439973960 is about 760.5754874802.

The spelling of 439973960 in words is "four hundred thirty-nine million, nine hundred seventy-three thousand, nine hundred sixty".