49921142 has 8 divisors (see below), whose sum is σ = 74913336. Its totient is φ = 24950032.

The previous prime is 49921141. The next prime is 49921199. The reversal of 49921142 is 24112994.

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

It is a junction number, because it is equal to n+sod(n) for n = 49921099 and 49921108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49921141) 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 3 ways as a sum of consecutive naturals, for example, 3713 + ... + 10659.

It is an arithmetic number, because the mean of its divisors is an integer number (9364167).

Almost surely, 2^49921142 is an apocalyptic number.

49921142 is a deficient number, since it is larger than the sum of its proper divisors (24992194).

49921142 is a wasteful number, since it uses less digits than its factorization.

49921142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10542.

The product of its digits is 5184, while the sum is 32.

The square root of 49921142 is about 7065.4895088734. The cubic root of 49921142 is about 368.2093710510.

The spelling of 49921142 in words is "forty-nine million, nine hundred twenty-one thousand, one hundred forty-two".