48781980 has 96 divisors (see below), whose sum is σ = 163464000. Its totient is φ = 12006144.

The previous prime is 48781951. The next prime is 48781981. The reversal of 48781980 is 8918784.

48781980 is a `hidden beast` number, since 487 + 81 + 98 + 0 = 666.

48781980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48781981) 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 31 ways as a sum of consecutive naturals, for example, 3546 + ... + 10494.

It is an arithmetic number, because the mean of its divisors is an integer number (1702750).

Almost surely, 2^48781980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 48781980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81732000).

48781980 is an abundant number, since it is smaller than the sum of its proper divisors (114682020).

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

48781980 is a wasteful number, since it uses less digits than its factorization.

48781980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6980 (or 6972 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 48781980 is about 6984.4097817926. The cubic root of 48781980 is about 365.3870417454.

The spelling of 48781980 in words is "forty-eight million, seven hundred eighty-one thousand, nine hundred eighty".