48181812 has 48 divisors (see below), whose sum is σ = 132636672. Its totient is φ = 13321440.

The previous prime is 48181811. The next prime is 48181933. The reversal of 48181812 is 21818184.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48181811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6648 + ... + 11855.

It is an arithmetic number, because the mean of its divisors is an integer number (2763264).

Almost surely, 2^48181812 is an apocalyptic number.

48181812 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

48181812 is an abundant number, since it is smaller than the sum of its proper divisors (84454860).

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

48181812 is a wasteful number, since it uses less digits than its factorization.

48181812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18548 (or 18546 counting only the distinct ones).

The product of its digits is 4096, while the sum is 33.

The square root of 48181812 is about 6941.3119797341. The cubic root of 48181812 is about 363.8823936771.

Adding to 48181812 its reverse (21818184), we get a palindrome (69999996).

The spelling of 48181812 in words is "forty-eight million, one hundred eighty-one thousand, eight hundred twelve".