344226646 has 4 divisors (see below), whose sum is σ = 516339972. Its totient is φ = 172113322.

The previous prime is 344226643. The next prime is 344226661. The reversal of 344226646 is 646622443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 646622443 = 1531 ⋅422353.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344226643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86056660 + ... + 86056663.

It is an arithmetic number, because the mean of its divisors is an integer number (129084993).

Almost surely, 2^344226646 is an apocalyptic number.

344226646 is a deficient number, since it is larger than the sum of its proper divisors (172113326).

344226646 is a wasteful number, since it uses less digits than its factorization.

344226646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172113325.

The product of its digits is 165888, while the sum is 37.

The square root of 344226646 is about 18553.3459516067. The cubic root of 344226646 is about 700.8334603015.

The spelling of 344226646 in words is "three hundred forty-four million, two hundred twenty-six thousand, six hundred forty-six".