49581418 has 12 divisors (see below), whose sum is σ = 79005222. Its totient is φ = 23332160.

The previous prime is 49581409. The next prime is 49581463. The reversal of 49581418 is 81418594.

It can be written as a sum of positive squares in 3 ways, for example, as 48399849 + 1181569 = 6957^2 + 1087^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42313 + ... + 43468.

Almost surely, 2^49581418 is an apocalyptic number.

49581418 is a deficient number, since it is larger than the sum of its proper divisors (29423804).

49581418 is a wasteful number, since it uses less digits than its factorization.

49581418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85817 (or 85800 counting only the distinct ones).

The product of its digits is 46080, while the sum is 40.

The square root of 49581418 is about 7041.4073877315. The cubic root of 49581418 is about 367.3722214538.

The spelling of 49581418 in words is "forty-nine million, five hundred eighty-one thousand, four hundred eighteen".