49318345 has 4 divisors (see below), whose sum is σ = 59182020. Its totient is φ = 39454672.

The previous prime is 49318331. The next prime is 49318349. The reversal of 49318345 is 54381394.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54381394 = 2 ⋅27190697.

It can be written as a sum of positive squares in 2 ways, for example, as 16232841 + 33085504 = 4029^2 + 5752^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49318345 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49318349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4931830 + ... + 4931839.

It is an arithmetic number, because the mean of its divisors is an integer number (14795505).

Almost surely, 2^49318345 is an apocalyptic number.

It is an amenable number.

49318345 is a deficient number, since it is larger than the sum of its proper divisors (9863675).

49318345 is an equidigital number, since it uses as much as digits as its factorization.

49318345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9863674.

The product of its digits is 51840, while the sum is 37.

The square root of 49318345 is about 7022.7021152830. The cubic root of 49318345 is about 366.7213247261.

It can be divided in two parts, 49 and 318345, that multiplied together give a triangular number (15598905 = T₅₅₈₅).

The spelling of 49318345 in words is "forty-nine million, three hundred eighteen thousand, three hundred forty-five".