49721020 has 24 divisors (see below), whose sum is σ = 105739200. Its totient is φ = 19636032.

The previous prime is 49720981. The next prime is 49721033. The reversal of 49721020 is 2012794.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14155 + ... + 17314.

It is an arithmetic number, because the mean of its divisors is an integer number (4405800).

Almost surely, 2^49721020 is an apocalyptic number.

It is an amenable number.

49721020 is an abundant number, since it is smaller than the sum of its proper divisors (56018180).

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

49721020 is a wasteful number, since it uses less digits than its factorization.

49721020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31557 (or 31555 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 49721020 is about 7051.3133528443. The cubic root of 49721020 is about 367.7166908160.

The spelling of 49721020 in words is "forty-nine million, seven hundred twenty-one thousand, twenty".