1439728042 has 8 divisors (see below), whose sum is σ = 2172524256. Its totient is φ = 715553292.

The previous prime is 1439728019. The next prime is 1439728051. The reversal of 1439728042 is 2408279341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1439727986 and 1439728004.

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 3 ways as a sum of consecutive naturals, for example, 2154948 + ... + 2155615.

It is an arithmetic number, because the mean of its divisors is an integer number (271565532).

Almost surely, 2^1439728042 is an apocalyptic number.

1439728042 is a deficient number, since it is larger than the sum of its proper divisors (732796214).

1439728042 is a wasteful number, since it uses less digits than its factorization.

1439728042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4310732.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 1439728042 is about 37943.7483915335. The cubic root of 1439728042 is about 1129.1721406602.

The spelling of 1439728042 in words is "one billion, four hundred thirty-nine million, seven hundred twenty-eight thousand, forty-two".