1828454389 has 2 divisors, whose sum is σ = 1828454390. Its totient is φ = 1828454388.

The previous prime is 1828454371. The next prime is 1828454461. The reversal of 1828454389 is 9834548281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1715202225 + 113252164 = 41415^2 + 10642^2 .

It is a cyclic number.

It is not a de Polignac number, because 1828454389 - 2¹³ = 1828446197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1828454339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 914227194 + 914227195.

It is an arithmetic number, because the mean of its divisors is an integer number (914227195).

Almost surely, 2^1828454389 is an apocalyptic number.

It is an amenable number.

1828454389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1828454389 is an equidigital number, since it uses as much as digits as its factorization.

1828454389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2211840, while the sum is 52.

The square root of 1828454389 is about 42760.4301779110. The cubic root of 1828454389 is about 1222.8167446090.

The spelling of 1828454389 in words is "one billion, eight hundred twenty-eight million, four hundred fifty-four thousand, three hundred eighty-nine".