49121620 has 24 divisors (see below), whose sum is σ = 103758984. Its totient is φ = 19533696.

The previous prime is 49121617. The next prime is 49121623. The reversal of 49121620 is 2612194.

49121620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (49121617) and next prime (49121623).

It can be written as a sum of positive squares in 4 ways, for example, as 30338064 + 18783556 = 5508^2 + 4334^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49121623) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3639 + ... + 10558.

It is an arithmetic number, because the mean of its divisors is an integer number (4323291).

Almost surely, 2^49121620 is an apocalyptic number.

It is an amenable number.

49121620 is an abundant number, since it is smaller than the sum of its proper divisors (54637364).

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

49121620 is a wasteful number, since it uses less digits than its factorization.

49121620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14379 (or 14377 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 49121620 is about 7008.6817590757. The cubic root of 49121620 is about 366.2330724043.

The spelling of 49121620 in words is "forty-nine million, one hundred twenty-one thousand, six hundred twenty".