343500445 has 4 divisors (see below), whose sum is σ = 412200540. Its totient is φ = 274800352.

The previous prime is 343500439. The next prime is 343500461. The reversal of 343500445 is 544005343.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 201270969 + 142229476 = 14187^2 + 11926^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343500445 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34350040 + ... + 34350049.

It is an arithmetic number, because the mean of its divisors is an integer number (103050135).

Almost surely, 2^343500445 is an apocalyptic number.

It is an amenable number.

343500445 is a deficient number, since it is larger than the sum of its proper divisors (68700095).

343500445 is an equidigital number, since it uses as much as digits as its factorization.

343500445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68700094.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 343500445 is about 18533.7649979706. The cubic root of 343500445 is about 700.3402733402.

Adding to 343500445 its reverse (544005343), we get a palindrome (887505788).

The spelling of 343500445 in words is "three hundred forty-three million, five hundred thousand, four hundred forty-five".