343944765 has 32 divisors (see below), whose sum is σ = 647429760. Its totient is φ = 172645632.

The previous prime is 343944763. The next prime is 343944781. The reversal of 343944765 is 567449343.

It is not a de Polignac number, because 343944765 - 2¹ = 343944763 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 343944765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343944761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72639 + ... + 77228.

It is an arithmetic number, because the mean of its divisors is an integer number (20232180).

Almost surely, 2^343944765 is an apocalyptic number.

It is an amenable number.

343944765 is a deficient number, since it is larger than the sum of its proper divisors (303484995).

343944765 is a wasteful number, since it uses less digits than its factorization.

343944765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149898 (or 149892 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 45.

The square root of 343944765 is about 18545.7478954072. The cubic root of 343944765 is about 700.6421080948.

The spelling of 343944765 in words is "three hundred forty-three million, nine hundred forty-four thousand, seven hundred sixty-five".