49709218 has 8 divisors (see below), whose sum is σ = 80299548. Its totient is φ = 22942704.

The previous prime is 49709203. The next prime is 49709227. The reversal of 49709218 is 81290794.

It can be written as a sum of positive squares in 2 ways, for example, as 45657049 + 4052169 = 6757^2 + 2013^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955921 + ... + 955972.

Almost surely, 2^49709218 is an apocalyptic number.

49709218 is a deficient number, since it is larger than the sum of its proper divisors (30590330).

49709218 is a wasteful number, since it uses less digits than its factorization.

49709218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911908.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 49709218 is about 7050.4764378019. The cubic root of 49709218 is about 367.6875942300.

The spelling of 49709218 in words is "forty-nine million, seven hundred nine thousand, two hundred eighteen".