49382721 has 24 divisors (see below), whose sum is σ = 74021376. Its totient is φ = 31691520.

The previous prime is 49382713. The next prime is 49382741. The reversal of 49382721 is 12728394.

It is not a de Polignac number, because 49382721 - 2³ = 49382713 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49382741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73041 + ... + 73713.

It is an arithmetic number, because the mean of its divisors is an integer number (3084224).

Almost surely, 2^49382721 is an apocalyptic number.

It is an amenable number.

49382721 is a deficient number, since it is larger than the sum of its proper divisors (24638655).

49382721 is a wasteful number, since it uses less digits than its factorization.

49382721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973 (or 970 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 49382721 is about 7027.2840415057. The cubic root of 49382721 is about 366.8808176927.

The spelling of 49382721 in words is "forty-nine million, three hundred eighty-two thousand, seven hundred twenty-one".