49722021 has 12 divisors (see below), whose sum is σ = 74943648. Its totient is φ = 31706664.

The previous prime is 49722017. The next prime is 49722089. The reversal of 49722021 is 12022794.

It is not a de Polignac number, because 49722021 - 2² = 49722017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49722091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119895 + ... + 120308.

It is an arithmetic number, because the mean of its divisors is an integer number (6245304).

Almost surely, 2^49722021 is an apocalyptic number.

It is an amenable number.

49722021 is a deficient number, since it is larger than the sum of its proper divisors (25221627).

49722021 is a wasteful number, since it uses less digits than its factorization.

49722021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240232 (or 240229 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 49722021 is about 7051.3843321719. The cubic root of 49722021 is about 367.7191584640.

The spelling of 49722021 in words is "forty-nine million, seven hundred twenty-two thousand, twenty-one".