1106420389 has 2 divisors, whose sum is σ = 1106420390. Its totient is φ = 1106420388.

The previous prime is 1106420387. The next prime is 1106420449. The reversal of 1106420389 is 9830246011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1104432289 + 1988100 = 33233^2 + 1410^2 .

It is a cyclic number.

It is not a de Polignac number, because 1106420389 - 2¹ = 1106420387 is a prime.

It is a super-2 number, since 2×1106420389² = 2448332154389822642, which contains 22 as substring.

Together with 1106420387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1106420387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 553210194 + 553210195.

It is an arithmetic number, because the mean of its divisors is an integer number (553210195).

Almost surely, 2^1106420389 is an apocalyptic number.

It is an amenable number.

1106420389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1106420389 is an equidigital number, since it uses as much as digits as its factorization.

1106420389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1106420389 is about 33262.8980848031. The cubic root of 1106420389 is about 1034.2845963639.

The spelling of 1106420389 in words is "one billion, one hundred six million, four hundred twenty thousand, three hundred eighty-nine".