49453218 has 12 divisors (see below), whose sum is σ = 107148678. Its totient is φ = 16484400.

The previous prime is 49453213. The next prime is 49453223. The reversal of 49453218 is 81235494.

It is an interprime number because it is at equal distance from previous prime (49453213) and next prime (49453223).

It can be written as a sum of positive squares in only one way, i.e., 38975049 + 10478169 = 6243^2 + 3237^2 .

It is not an unprimeable number, because it can be changed into a prime (49453211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1373683 + ... + 1373718.

Almost surely, 2^49453218 is an apocalyptic number.

49453218 is an abundant number, since it is smaller than the sum of its proper divisors (57695460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49453218 is a wasteful number, since it uses less digits than its factorization.

49453218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747409 (or 2747406 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 49453218 is about 7032.2982018683. The cubic root of 49453218 is about 367.0553166451.

The spelling of 49453218 in words is "forty-nine million, four hundred fifty-three thousand, two hundred eighteen".