49712218 has 8 divisors (see below), whose sum is σ = 74790612. Its totient is φ = 24782016.

The previous prime is 49712207. The next prime is 49712219. The reversal of 49712218 is 81221794.

It can be written as a sum of positive squares in 2 ways, for example, as 45522009 + 4190209 = 6747^2 + 2047^2 .

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

It is not an unprimeable number, because it can be changed into a prime (49712219) 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, 36205 + ... + 37552.

Almost surely, 2^49712218 is an apocalyptic number.

49712218 is a deficient number, since it is larger than the sum of its proper divisors (25078394).

49712218 is a wasteful number, since it uses less digits than its factorization.

49712218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74096.

The product of its digits is 8064, while the sum is 34.

The square root of 49712218 is about 7050.6891861718. The cubic root of 49712218 is about 367.6949908500.

The spelling of 49712218 in words is "forty-nine million, seven hundred twelve thousand, two hundred eighteen".