1982254900 has 18 divisors (see below), whose sum is σ = 4301493350. Its totient is φ = 792901920.

The previous prime is 1982254891. The next prime is 1982254907. The reversal of 1982254900 is 94522891.

It can be written as a sum of positive squares in 3 ways, for example, as 580644 + 1981674256 = 762^2 + 44516^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982254907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9911175 + ... + 9911374.

Almost surely, 2^1982254900 is an apocalyptic number.

1982254900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1982254900 is an abundant number, since it is smaller than the sum of its proper divisors (2319238450).

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

1982254900 is a wasteful number, since it uses less digits than its factorization.

1982254900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19822563 (or 19822556 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 1982254900 is about 44522.5212673317. The cubic root of 1982254900 is about 1256.1837373364.

The spelling of 1982254900 in words is "one billion, nine hundred eighty-two million, two hundred fifty-four thousand, nine hundred".