2820642970 has 32 divisors (see below), whose sum is σ = 5215991760. Its totient is φ = 1097564160.

The previous prime is 2820642947. The next prime is 2820642977. The reversal of 2820642970 is 792460282.

It can be written as a sum of positive squares in 8 ways, for example, as 9628609 + 2811014361 = 3103^2 + 53019^2 .

It is a super-3 number, since 3×2820642970³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2820642977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134986 + ... + 154474.

Almost surely, 2^2820642970 is an apocalyptic number.

2820642970 is a deficient number, since it is larger than the sum of its proper divisors (2395348790).

2820642970 is a wasteful number, since it uses less digits than its factorization.

2820642970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19890.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 2820642970 is about 53109.7257571530. The cubic root of 2820642970 is about 1412.9150112655.

The spelling of 2820642970 in words is "two billion, eight hundred twenty million, six hundred forty-two thousand, nine hundred seventy".