1982815480 has 32 divisors (see below), whose sum is σ = 4462743600. Its totient is φ = 792875776.

The previous prime is 1982815423. The next prime is 1982815501. The reversal of 1982815480 is 845182891.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1982815480.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170739 + ... + 181981.

Almost surely, 2^1982815480 is an apocalyptic number.

1982815480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1982815480 is an abundant number, since it is smaller than the sum of its proper divisors (2479928120).

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

1982815480 is a wasteful number, since it uses less digits than its factorization.

1982815480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15663 (or 15659 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 46.

The square root of 1982815480 is about 44528.8162878826. The cubic root of 1982815480 is about 1256.3021420731.

The spelling of 1982815480 in words is "one billion, nine hundred eighty-two million, eight hundred fifteen thousand, four hundred eighty".