1982259648 has 56 divisors (see below), whose sum is σ = 5827481360. Its totient is φ = 660752640.

The previous prime is 1982259611. The next prime is 1982259661. The reversal of 1982259648 is 8469522891.

It is a happy number.

1982259648 is a `hidden beast` number, since 1 + 9 + 8 + 2 + 2 + 596 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1982259594 and 1982259603.

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, 571843 + ... + 575298.

Almost surely, 2^1982259648 is an apocalyptic number.

1982259648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1982259648 is an abundant number, since it is smaller than the sum of its proper divisors (3845221712).

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

1982259648 is a wasteful number, since it uses less digits than its factorization.

1982259648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147162 (or 1147146 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 1982259648 is about 44522.5745886286. The cubic root of 1982259648 is about 1256.1847402945.

The spelling of 1982259648 in words is "one billion, nine hundred eighty-two million, two hundred fifty-nine thousand, six hundred forty-eight".