1982860128 has 48 divisors (see below), whose sum is σ = 5783344560. Its totient is φ = 660953088.

The previous prime is 1982860073. The next prime is 1982860133. The reversal of 1982860128 is 8210682891.

It is a happy number.

1982860128 is a `hidden beast` number, since 19 + 8 + 2 + 8 + 601 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146625 + ... + 1148352.

It is an arithmetic number, because the mean of its divisors is an integer number (120486345).

Almost surely, 2^1982860128 is an apocalyptic number.

1982860128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1982860128 is an abundant number, since it is smaller than the sum of its proper divisors (3800484432).

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

1982860128 is a wasteful number, since it uses less digits than its factorization.

1982860128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294996 (or 2294982 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 1982860128 is about 44529.3176233367. The cubic root of 1982860128 is about 1256.3115715868.

The spelling of 1982860128 in words is "one billion, nine hundred eighty-two million, eight hundred sixty thousand, one hundred twenty-eight".