49986142 has 8 divisors (see below), whose sum is σ = 75094632. Its totient is φ = 24954600.

The previous prime is 49986127. The next prime is 49986151. The reversal of 49986142 is 24168994.

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

It is a super-2 number, since 2×49986142² = 4997228784088328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 17584 + ... + 20227.

It is an arithmetic number, because the mean of its divisors is an integer number (9386829).

Almost surely, 2^49986142 is an apocalyptic number.

49986142 is a deficient number, since it is larger than the sum of its proper divisors (25108490).

49986142 is a wasteful number, since it uses less digits than its factorization.

49986142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38474.

The product of its digits is 124416, while the sum is 43.

The square root of 49986142 is about 7070.0878353808. The cubic root of 49986142 is about 368.3691111801.

The spelling of 49986142 in words is "forty-nine million, nine hundred eighty-six thousand, one hundred forty-two".