344542045 has 4 divisors (see below), whose sum is σ = 413450460. Its totient is φ = 275633632.

The previous prime is 344542031. The next prime is 344542057. The reversal of 344542045 is 540245443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540245443 = 19427 ⋅27809.

It can be written as a sum of positive squares in 2 ways, for example, as 183277444 + 161264601 = 13538^2 + 12699^2 .

It is a cyclic number.

It is not a de Polignac number, because 344542045 - 2⁵ = 344542013 is a prime.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 344541998 and 344542016.

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, 34454200 + ... + 34454209.

It is an arithmetic number, because the mean of its divisors is an integer number (103362615).

Almost surely, 2^344542045 is an apocalyptic number.

It is an amenable number.

344542045 is a deficient number, since it is larger than the sum of its proper divisors (68908415).

344542045 is an equidigital number, since it uses as much as digits as its factorization.

344542045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68908414.

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 344542045 is about 18561.8437931150. The cubic root of 344542045 is about 701.0474420867.

Adding to 344542045 its reverse (540245443), we get a palindrome (884787488).

The spelling of 344542045 in words is "three hundred forty-four million, five hundred forty-two thousand, forty-five".