2821395970 has 16 divisors (see below), whose sum is σ = 5299318080. Its totient is φ = 1079490544.

The previous prime is 2821395961. The next prime is 2821395971. The reversal of 2821395970 is 795931282.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 2821395970.

It is not an unprimeable number, because it can be changed into a prime (2821395971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6133240 + ... + 6133699.

It is an arithmetic number, because the mean of its divisors is an integer number (331207380).

Almost surely, 2^2821395970 is an apocalyptic number.

2821395970 is a deficient number, since it is larger than the sum of its proper divisors (2477922110).

2821395970 is a wasteful number, since it uses less digits than its factorization.

2821395970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12266969.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 2821395970 is about 53116.8143811355. The cubic root of 2821395970 is about 1413.0407308684.

The spelling of 2821395970 in words is "two billion, eight hundred twenty-one million, three hundred ninety-five thousand, nine hundred seventy".