2905082840 has 32 divisors (see below), whose sum is σ = 7130658960. Its totient is φ = 1056393600.

The previous prime is 2905082837. The next prime is 2905082863. The reversal of 2905082840 is 482805092.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2905082794 and 2905082803.

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, 3300791 + ... + 3301670.

Almost surely, 2^2905082840 is an apocalyptic number.

2905082840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2905082840 is an abundant number, since it is smaller than the sum of its proper divisors (4225576120).

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

2905082840 is a wasteful number, since it uses less digits than its factorization.

2905082840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6602483 (or 6602479 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 2905082840 is about 53898.8203952554. The cubic root of 2905082840 is about 1426.8758044451.

The spelling of 2905082840 in words is "two billion, nine hundred five million, eighty-two thousand, eight hundred forty".