2030405789 has 2 divisors, whose sum is σ = 2030405790. Its totient is φ = 2030405788.

The previous prime is 2030405749. The next prime is 2030405849. The reversal of 2030405789 is 9875040302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1784386564 + 246019225 = 42242^2 + 15685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2030405789 is a prime.

It is a super-3 number, since 3×2030405789³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2030405749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015202894 + 1015202895.

It is an arithmetic number, because the mean of its divisors is an integer number (1015202895).

Almost surely, 2^2030405789 is an apocalyptic number.

It is an amenable number.

2030405789 is a deficient number, since it is larger than the sum of its proper divisors (1).

2030405789 is an equidigital number, since it uses as much as digits as its factorization.

2030405789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 2030405789 is about 45060.0242898292. The cubic root of 2030405789 is about 1266.2737801425.

The spelling of 2030405789 in words is "two billion, thirty million, four hundred five thousand, seven hundred eighty-nine".