49857644 has 6 divisors (see below), whose sum is σ = 87250884. Its totient is φ = 24928820.

The previous prime is 49857631. The next prime is 49857677. The reversal of 49857644 is 44675894.

49857644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 as a sum of consecutive naturals, namely, 6232202 + ... + 6232209.

It is an arithmetic number, because the mean of its divisors is an integer number (14541814).

Almost surely, 2^49857644 is an apocalyptic number.

It is an amenable number.

49857644 is a deficient number, since it is larger than the sum of its proper divisors (37393240).

49857644 is a wasteful number, since it uses less digits than its factorization.

49857644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12464415 (or 12464413 counting only the distinct ones).

The product of its digits is 967680, while the sum is 47.

The square root of 49857644 is about 7060.9945475124. The cubic root of 49857644 is about 368.0531882006.

The spelling of 49857644 in words is "forty-nine million, eight hundred fifty-seven thousand, six hundred forty-four".