48181988 has 6 divisors (see below), whose sum is σ = 84318486. Its totient is φ = 24090992.

The previous prime is 48181951. The next prime is 48181997. The reversal of 48181988 is 88918184.

It can be written as a sum of positive squares in only one way, i.e., 30558784 + 17623204 = 5528^2 + 4198^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6022745 + ... + 6022752.

It is an arithmetic number, because the mean of its divisors is an integer number (14053081).

Almost surely, 2^48181988 is an apocalyptic number.

It is an amenable number.

48181988 is a deficient number, since it is larger than the sum of its proper divisors (36136498).

48181988 is a wasteful number, since it uses less digits than its factorization.

48181988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12045501 (or 12045499 counting only the distinct ones).

The product of its digits is 147456, while the sum is 47.

The square root of 48181988 is about 6941.3246574411. The cubic root of 48181988 is about 363.8828367434.

The spelling of 48181988 in words is "forty-eight million, one hundred eighty-one thousand, nine hundred eighty-eight".