1218382848 has 132 divisors (see below), whose sum is σ = 3568215768. Its totient is φ = 400343040.

The previous prime is 1218382819. The next prime is 1218382849. The reversal of 1218382848 is 8482838121.

It is a happy number.

It is a super-2 number, since 2×1218382848² = 2968913528601182208, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1218382849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 671863 + ... + 673673.

Almost surely, 2^1218382848 is an apocalyptic number.

1218382848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1218382848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1784107884).

1218382848 is an abundant number, since it is smaller than the sum of its proper divisors (2349832920).

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

1218382848 is a wasteful number, since it uses less digits than its factorization.

1218382848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910 (or 1889 counting only the distinct ones).

The product of its digits is 196608, while the sum is 45.

The square root of 1218382848 is about 34905.3412531664. The cubic root of 1218382848 is about 1068.0573970752.

The spelling of 1218382848 in words is "one billion, two hundred eighteen million, three hundred eighty-two thousand, eight hundred forty-eight".