48891780 has 72 divisors (see below), whose sum is σ = 169495872. Its totient is φ = 11174976.

The previous prime is 48891761. The next prime is 48891781. The reversal of 48891780 is 8719884.

48891780 is a `hidden beast` number, since 488 + 91 + 7 + 80 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (48891781) 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, 18142 + ... + 20661.

Almost surely, 2^48891780 is an apocalyptic number.

It is an amenable number.

48891780 is an abundant number, since it is smaller than the sum of its proper divisors (120604092).

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

48891780 is a wasteful number, since it uses less digits than its factorization.

48891780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38825 (or 38820 counting only the distinct ones).

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

The square root of 48891780 is about 6992.2657272160. The cubic root of 48891780 is about 365.6609778315.

The spelling of 48891780 in words is "forty-eight million, eight hundred ninety-one thousand, seven hundred eighty".