344646645 has 48 divisors (see below), whose sum is σ = 652065408. Its totient is φ = 154949760.

The previous prime is 344646641. The next prime is 344646647. The reversal of 344646645 is 546646443.

It is not a de Polignac number, because 344646645 - 2² = 344646641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 344646597 and 344646606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344646641) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40992 + ... + 48678.

It is an arithmetic number, because the mean of its divisors is an integer number (13584696).

Almost surely, 2^344646645 is an apocalyptic number.

344646645 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

344646645 is a deficient number, since it is larger than the sum of its proper divisors (307418763).

344646645 is a wasteful number, since it uses less digits than its factorization.

344646645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7770 (or 7763 counting only the distinct ones).

The product of its digits is 829440, while the sum is 42.

The square root of 344646645 is about 18564.6611873204. The cubic root of 344646645 is about 701.1183788988.

The spelling of 344646645 in words is "three hundred forty-four million, six hundred forty-six thousand, six hundred forty-five".