49494138 has 8 divisors (see below), whose sum is σ = 98988288. Its totient is φ = 16498044.

The previous prime is 49494131. The next prime is 49494139. The reversal of 49494138 is 83149494.

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

49494138 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 49494138.

It is not an unprimeable number, because it can be changed into a prime (49494131) 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, 4124506 + ... + 4124517.

It is an arithmetic number, because the mean of its divisors is an integer number (12373536).

Almost surely, 2^49494138 is an apocalyptic number.

49494138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

49494138 is a wasteful number, since it uses less digits than its factorization.

49494138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8249028.

The product of its digits is 124416, while the sum is 42.

The square root of 49494138 is about 7035.2070332009. The cubic root of 49494138 is about 367.1565285469.

The spelling of 49494138 in words is "forty-nine million, four hundred ninety-four thousand, one hundred thirty-eight".