1406354669 has 2 divisors, whose sum is σ = 1406354670. Its totient is φ = 1406354668.

The previous prime is 1406354659. The next prime is 1406354707. The reversal of 1406354669 is 9664536041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1386445225 + 19909444 = 37235^2 + 4462^2 .

It is a cyclic number.

It is not a de Polignac number, because 1406354669 - 2²⁰ = 1405306093 is a prime.

It is a super-2 number, since 2×1406354669² = 3955666910036199122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1406354659) 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 as a sum of consecutive naturals, namely, 703177334 + 703177335.

It is an arithmetic number, because the mean of its divisors is an integer number (703177335).

Almost surely, 2^1406354669 is an apocalyptic number.

It is an amenable number.

1406354669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406354669 is an equidigital number, since it uses as much as digits as its factorization.

1406354669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 44.

The square root of 1406354669 is about 37501.3955606988. The cubic root of 1406354669 is about 1120.3789823440.

The spelling of 1406354669 in words is "one billion, four hundred six million, three hundred fifty-four thousand, six hundred sixty-nine".