2140404229 has 2 divisors, whose sum is σ = 2140404230. Its totient is φ = 2140404228.

The previous prime is 2140404209. The next prime is 2140404239. The reversal of 2140404229 is 9224040412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1260392004 + 880012225 = 35502^2 + 29665^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2140404229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2140404197 and 2140404206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2140404209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070202114 + 1070202115.

It is an arithmetic number, because the mean of its divisors is an integer number (1070202115).

Almost surely, 2^2140404229 is an apocalyptic number.

It is an amenable number.

2140404229 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140404229 is an equidigital number, since it uses as much as digits as its factorization.

2140404229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 2140404229 is about 46264.5029044947. The cubic root of 2140404229 is about 1288.7398765669.

The spelling of 2140404229 in words is "two billion, one hundred forty million, four hundred four thousand, two hundred twenty-nine".