1982497000 has 128 divisors (see below), whose sum is σ = 5198618880. Its totient is φ = 701280000.

The previous prime is 1982496953. The next prime is 1982497087. The reversal of 1982497000 is 7942891.

It is a Harshad number since it is a multiple of its sum of digits (40).

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 31 ways as a sum of consecutive naturals, for example, 404565 + ... + 409435.

It is an arithmetic number, because the mean of its divisors is an integer number (40614210).

Almost surely, 2^1982497000 is an apocalyptic number.

1982497000 is a gapful number since it is divisible by the number (10) 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 1982497000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2599309440).

1982497000 is an abundant number, since it is smaller than the sum of its proper divisors (3216121880).

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

1982497000 is a wasteful number, since it uses less digits than its factorization.

1982497000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4940 (or 4926 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 1982497000 is about 44525.2400330419. The cubic root of 1982497000 is about 1256.2348760174.

The spelling of 1982497000 in words is "one billion, nine hundred eighty-two million, four hundred ninety-seven thousand".