1982178752 has 28 divisors (see below), whose sum is σ = 4017081120. Its totient is φ = 970000896.

The previous prime is 1982178727. The next prime is 1982178769. The reversal of 1982178752 is 2578712891.

It is a self number, because there is not a number n which added to its sum of digits gives 1982178752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326477 + ... + 332492.

Almost surely, 2^1982178752 is an apocalyptic number.

It is an amenable number.

1982178752 is an abundant number, since it is smaller than the sum of its proper divisors (2034902368).

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

1982178752 is an equidigital number, since it uses as much as digits as its factorization.

1982178752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659028 (or 659018 counting only the distinct ones).

The product of its digits is 564480, while the sum is 50.

The square root of 1982178752 is about 44521.6660964075. Note that the first 3 decimals coincide. The cubic root of 1982178752 is about 1256.1676517657.

The spelling of 1982178752 in words is "one billion, nine hundred eighty-two million, one hundred seventy-eight thousand, seven hundred fifty-two".