1842469 has 2 divisors, whose sum is σ = 1842470. Its totient is φ = 1842468.

The previous prime is 1842431. The next prime is 1842473. The reversal of 1842469 is 9642481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1404225 + 438244 = 1185^2 + 662^2 .

It is a cyclic number.

It is not a de Polignac number, because 1842469 - 2¹⁷ = 1711397 is a prime.

It is a super-2 number, since 2×1842469² = 6789384031922, which contains 22 as substring.

1842469 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1842419) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 921234 + 921235.

It is an arithmetic number, because the mean of its divisors is an integer number (921235).

2^1842469 is an apocalyptic number.

It is an amenable number.

1842469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1842469 is an equidigital number, since it uses as much as digits as its factorization.

1842469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 34.

The square root of 1842469 is about 1357.3757770050. The cubic root of 1842469 is about 122.5932983535.

The spelling of 1842469 in words is "one million, eight hundred forty-two thousand, four hundred sixty-nine".