2820640470 has 32 divisors (see below), whose sum is σ = 6926971392. Its totient is φ = 734678112.

The previous prime is 2820640463. The next prime is 2820640481. The reversal of 2820640470 is 740460282.

It is a super-2 number, since 2×2820640470² = 15912025322003641800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1091982 + ... + 1094561.

It is an arithmetic number, because the mean of its divisors is an integer number (216467856).

Almost surely, 2^2820640470 is an apocalyptic number.

2820640470 is an abundant number, since it is smaller than the sum of its proper divisors (4106330922).

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

2820640470 is a wasteful number, since it uses less digits than its factorization.

2820640470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186596.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 2820640470 is about 53109.7022209690. The cubic root of 2820640470 is about 1412.9145938325.

The spelling of 2820640470 in words is "two billion, eight hundred twenty million, six hundred forty thousand, four hundred seventy".