49821012 has 18 divisors (see below), whose sum is σ = 125936538. Its totient is φ = 16606992.

The previous prime is 49821001. The next prime is 49821029. The reversal of 49821012 is 21012894.

49821012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 31877316 + 17943696 = 5646^2 + 4236^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 691923 + ... + 691994.

Almost surely, 2^49821012 is an apocalyptic number.

It is an amenable number.

49821012 is an abundant number, since it is smaller than the sum of its proper divisors (76115526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49821012 is a wasteful number, since it uses less digits than its factorization.

49821012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383927 (or 1383922 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 49821012 is about 7058.4001020061. The cubic root of 49821012 is about 367.9630259796.

The spelling of 49821012 in words is "forty-nine million, eight hundred twenty-one thousand, twelve".