1439628331406 has 8 divisors (see below), whose sum is σ = 2159447750040. Its totient is φ = 719812414728.

The previous prime is 1439628331399. The next prime is 1439628331417. The reversal of 1439628331406 is 6041338269341.

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

It is a congruent number.

It is an unprimeable number.

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, 773180 + ... + 1864688.

It is an arithmetic number, because the mean of its divisors is an integer number (269930968755).

Almost surely, 2^{1439628331406} is an apocalyptic number.

1439628331406 is a deficient number, since it is larger than the sum of its proper divisors (719819418634).

1439628331406 is a wasteful number, since it uses less digits than its factorization.

1439628331406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750978.

The product of its (nonzero) digits is 2239488, while the sum is 50.

The spelling of 1439628331406 in words is "one trillion, four hundred thirty-nine billion, six hundred twenty-eight million, three hundred thirty-one thousand, four hundred six".