2178263332 has 12 divisors (see below), whose sum is σ = 4356526720. Its totient is φ = 933541416.

The previous prime is 2178263309. The next prime is 2178263359. The reversal of 2178263332 is 2333628712.

2178263332 is an admirable number.

It is a super-2 number, since 2×2178263332² = 9489662287071484448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2178263291 and 2178263300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38897532 + ... + 38897587.

Almost surely, 2^2178263332 is an apocalyptic number.

It is an amenable number.

2178263332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2178263332 is a wasteful number, since it uses less digits than its factorization.

2178263332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77795130 (or 77795128 counting only the distinct ones).

The product of its digits is 72576, while the sum is 37.

The square root of 2178263332 is about 46671.8687433876. The cubic root of 2178263332 is about 1296.2938489624.

The spelling of 2178263332 in words is "two billion, one hundred seventy-eight million, two hundred sixty-three thousand, three hundred thirty-two".