49142899 has 8 divisors (see below), whose sum is σ = 53231472. Its totient is φ = 45098400.

The previous prime is 49142897. The next prime is 49142921. The reversal of 49142899 is 99824194.

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

It is a cyclic number.

It is not a de Polignac number, because 49142899 - 2¹ = 49142897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49142897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8677 + ... + 13174.

It is an arithmetic number, because the mean of its divisors is an integer number (6653934).

Almost surely, 2^49142899 is an apocalyptic number.

49142899 is a deficient number, since it is larger than the sum of its proper divisors (4088573).

49142899 is a wasteful number, since it uses less digits than its factorization.

49142899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22037.

The product of its digits is 186624, while the sum is 46.

The square root of 49142899 is about 7010.1996405238. The cubic root of 49142899 is about 366.2859476184.

The spelling of 49142899 in words is "forty-nine million, one hundred forty-two thousand, eight hundred ninety-nine".