2190433789 has 2 divisors, whose sum is σ = 2190433790. Its totient is φ = 2190433788.

The previous prime is 2190433769. The next prime is 2190433793. The reversal of 2190433789 is 9873340912.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2124288100 + 66145689 = 46090^2 + 8133^2 .

It is a cyclic number.

It is not a de Polignac number, because 2190433789 - 2⁵ = 2190433757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2190433759) 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, 1095216894 + 1095216895.

It is an arithmetic number, because the mean of its divisors is an integer number (1095216895).

Almost surely, 2^2190433789 is an apocalyptic number.

It is an amenable number.

2190433789 is a deficient number, since it is larger than the sum of its proper divisors (1).

2190433789 is an equidigital number, since it uses as much as digits as its factorization.

2190433789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 2190433789 is about 46802.0703495048. The cubic root of 2190433789 is about 1298.7035969628.

The spelling of 2190433789 in words is "two billion, one hundred ninety million, four hundred thirty-three thousand, seven hundred eighty-nine".