344227644 has 60 divisors (see below), whose sum is σ = 901811064. Its totient is φ = 114496416.

The previous prime is 344227619. The next prime is 344227673. The reversal of 344227644 is 446722443.

344227644 is a `hidden beast` number, since 3 + 4 + 4 + 2 + 2 + 7 + 644 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 344227599 and 344227608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 210759 + ... + 212385.

Almost surely, 2^344227644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 344227644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450905532).

344227644 is an abundant number, since it is smaller than the sum of its proper divisors (557583420).

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

344227644 is a wasteful number, since it uses less digits than its factorization.

344227644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2296 (or 2285 counting only the distinct ones).

The product of its digits is 129024, while the sum is 36.

The square root of 344227644 is about 18553.3728470055. The cubic root of 344227644 is about 700.8341375986.

The spelling of 344227644 in words is "three hundred forty-four million, two hundred twenty-seven thousand, six hundred forty-four".