840982480 has 40 divisors (see below), whose sum is σ = 2105693352. Its totient is φ = 310516224.

The previous prime is 840982463. The next prime is 840982507. The reversal of 840982480 is 84289048.

It can be written as a sum of positive squares in 4 ways, for example, as 39639616 + 801342864 = 6296^2 + 28308^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (43) 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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403279 + ... + 405358.

Almost surely, 2^840982480 is an apocalyptic number.

840982480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

840982480 is an abundant number, since it is smaller than the sum of its proper divisors (1264710872).

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

840982480 is a wasteful number, since it uses less digits than its factorization.

840982480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808663 (or 808657 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The square root of 840982480 is about 28999.6979294613. The cubic root of 840982480 is about 943.9065130536.

The spelling of 840982480 in words is "eight hundred forty million, nine hundred eighty-two thousand, four hundred eighty".