2207971028 has 24 divisors (see below), whose sum is σ = 3999187080. Its totient is φ = 1065384320.

The previous prime is 2207971027. The next prime is 2207971081. The reversal of 2207971028 is 8201797022.

It can be written as a sum of positive squares in 4 ways, for example, as 31561924 + 2176409104 = 5618^2 + 46652^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2207970982 and 2207971000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2207971027) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 328550 + ... + 335202.

It is an arithmetic number, because the mean of its divisors is an integer number (166632795).

Almost surely, 2^2207971028 is an apocalyptic number.

It is an amenable number.

2207971028 is a deficient number, since it is larger than the sum of its proper divisors (1791216052).

2207971028 is a wasteful number, since it uses less digits than its factorization.

2207971028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9547 (or 9545 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 2207971028 is about 46989.0522143190. The cubic root of 2207971028 is about 1302.1603188767.

The spelling of 2207971028 in words is "two billion, two hundred seven million, nine hundred seventy-one thousand, twenty-eight".