1878682212 has 144 divisors (see below), whose sum is σ = 5473628160. Its totient is φ = 537969600.

The previous prime is 1878682163. The next prime is 1878682217. The reversal of 1878682212 is 2122868781.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1878682217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 526089 + ... + 529647.

Almost surely, 2^1878682212 is an apocalyptic number.

1878682212 is a gapful number since it is divisible by the number (12) 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 1878682212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2736814080).

1878682212 is an abundant number, since it is smaller than the sum of its proper divisors (3594945948).

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

1878682212 is a wasteful number, since it uses less digits than its factorization.

1878682212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3654 (or 3649 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The square root of 1878682212 is about 43343.7678565212. The cubic root of 1878682212 is about 1233.9127196126.

The spelling of 1878682212 in words is "one billion, eight hundred seventy-eight million, six hundred eighty-two thousand, two hundred twelve".