49278442 has 8 divisors (see below), whose sum is σ = 74048832. Its totient is φ = 24595500.

The previous prime is 49278421. The next prime is 49278469. The reversal of 49278442 is 24487294.

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 = 49278395 and 49278404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20434 + ... + 22717.

It is an arithmetic number, because the mean of its divisors is an integer number (9256104).

Almost surely, 2^49278442 is an apocalyptic number.

49278442 is a deficient number, since it is larger than the sum of its proper divisors (24770390).

49278442 is a wasteful number, since it uses less digits than its factorization.

49278442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43724.

The product of its digits is 129024, while the sum is 40.

The square root of 49278442 is about 7019.8605399253. The cubic root of 49278442 is about 366.6223944710.

The spelling of 49278442 in words is "forty-nine million, two hundred seventy-eight thousand, four hundred forty-two".