344436220639 has 8 divisors (see below), whose sum is σ = 393701298848. Its totient is φ = 295186118400.

The previous prime is 344436220627. The next prime is 344436220657. The reversal of 344436220639 is 936022634443.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 344436220639 - 2⁵ = 344436220607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344436226639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3694662 + ... + 3786739.

It is an arithmetic number, because the mean of its divisors is an integer number (49212662356).

Almost surely, 2^344436220639 is an apocalyptic number.

344436220639 is a deficient number, since it is larger than the sum of its proper divisors (49265078209).

344436220639 is an equidigital number, since it uses as much as digits as its factorization.

344436220639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7487985.

The product of its (nonzero) digits is 2239488, while the sum is 46.

The spelling of 344436220639 in words is "three hundred forty-four billion, four hundred thirty-six million, two hundred twenty thousand, six hundred thirty-nine".