49920442 has 32 divisors (see below), whose sum is σ = 91808640. Its totient is φ = 20032320.

The previous prime is 49920421. The next prime is 49920443. The reversal of 49920442 is 24402994.

It is a junction number, because it is equal to n+sod(n) for n = 49920398 and 49920407.

It is not an unprimeable number, because it can be changed into a prime (49920443) 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 15 ways as a sum of consecutive naturals, for example, 2784 + ... + 10372.

It is an arithmetic number, because the mean of its divisors is an integer number (2869020).

Almost surely, 2^49920442 is an apocalyptic number.

49920442 is a deficient number, since it is larger than the sum of its proper divisors (41888198).

49920442 is a wasteful number, since it uses less digits than its factorization.

49920442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7638.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 49920442 is about 7065.4399721461. The cubic root of 49920442 is about 368.2076500182.

The spelling of 49920442 in words is "forty-nine million, nine hundred twenty thousand, four hundred forty-two".