1439424020 has 12 divisors (see below), whose sum is σ = 3022790484. Its totient is φ = 575769600.

The previous prime is 1439423989. The next prime is 1439424029. The reversal of 1439424020 is 204249341.

It can be written as a sum of positive squares in 2 ways, for example, as 469848976 + 969575044 = 21676^2 + 31138^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1439424029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35985581 + ... + 35985620.

It is an arithmetic number, because the mean of its divisors is an integer number (251899207).

Almost surely, 2^1439424020 is an apocalyptic number.

1439424020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1439424020 is an abundant number, since it is smaller than the sum of its proper divisors (1583366464).

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

1439424020 is a wasteful number, since it uses less digits than its factorization.

1439424020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71971210 (or 71971208 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1439424020 is about 37939.7419601135. The cubic root of 1439424020 is about 1129.0926540421.

The spelling of 1439424020 in words is "one billion, four hundred thirty-nine million, four hundred twenty-four thousand, twenty".