1439628442 has 64 divisors (see below), whose sum is σ = 2764143360. Its totient is φ = 547430400.

The previous prime is 1439628427. The next prime is 1439628451. The reversal of 1439628442 is 2448269341.

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 31 ways as a sum of consecutive naturals, for example, 1089142 + ... + 1090462.

It is an arithmetic number, because the mean of its divisors is an integer number (43189740).

Almost surely, 2^1439628442 is an apocalyptic number.

1439628442 is a deficient number, since it is larger than the sum of its proper divisors (1324514918).

1439628442 is a wasteful number, since it uses less digits than its factorization.

1439628442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607.

The product of its digits is 331776, while the sum is 43.

The square root of 1439628442 is about 37942.4358996625. The cubic root of 1439628442 is about 1129.1461014511.

The spelling of 1439628442 in words is "one billion, four hundred thirty-nine million, six hundred twenty-eight thousand, four hundred forty-two".