439743105642 has 32 divisors (see below), whose sum is σ = 884253868992. Its totient is φ = 145788516224.

The previous prime is 439743105629. The next prime is 439743105673. The reversal of 439743105642 is 246501347934.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 439743105591 and 439743105600.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 581638 + ... + 1103534.

It is an arithmetic number, because the mean of its divisors is an integer number (27632933406).

Almost surely, 2^439743105642 is an apocalyptic number.

439743105642 is an abundant number, since it is smaller than the sum of its proper divisors (444510763350).

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

439743105642 is a wasteful number, since it uses less digits than its factorization.

439743105642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522662.

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 439743105642 in words is "four hundred thirty-nine billion, seven hundred forty-three million, one hundred five thousand, six hundred forty-two".