734046640438 has 32 divisors (see below), whose sum is σ = 1122734092320. Its totient is φ = 359836677120.

The previous prime is 734046640427. The next prime is 734046640501. The reversal of 734046640438 is 834046640437.

It is a junction number, because it is equal to n+sod(n) for n = 734046640391 and 734046640400.

It is a congruent number.

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, 71006406 + ... + 71016742.

It is an arithmetic number, because the mean of its divisors is an integer number (35085440385).

Almost surely, 2^734046640438 is an apocalyptic number.

734046640438 is a deficient number, since it is larger than the sum of its proper divisors (388687451882).

734046640438 is a wasteful number, since it uses less digits than its factorization.

734046640438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11952.

The product of its (nonzero) digits is 4644864, while the sum is 49.

Subtracting 734046640438 from its reverse (834046640437), we obtain a palindrome (99999999999).

The spelling of 734046640438 in words is "seven hundred thirty-four billion, forty-six million, six hundred forty thousand, four hundred thirty-eight".