18795449 has 2 divisors, whose sum is σ = 18795450. Its totient is φ = 18795448.

The previous prime is 18795419. The next prime is 18795457. The reversal of 18795449 is 94459781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11868025 + 6927424 = 3445^2 + 2632^2 .

It is a cyclic number.

It is not a de Polignac number, because 18795449 - 2¹⁶ = 18729913 is a prime.

It is a super-2 number, since 2×18795449² = 706537806223202, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18795409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9397724 + 9397725.

It is an arithmetic number, because the mean of its divisors is an integer number (9397725).

Almost surely, 2^18795449 is an apocalyptic number.

It is an amenable number.

18795449 is a deficient number, since it is larger than the sum of its proper divisors (1).

18795449 is an equidigital number, since it uses as much as digits as its factorization.

18795449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 47.

The square root of 18795449 is about 4335.3718410305. The cubic root of 18795449 is about 265.8791214016.

The spelling of 18795449 in words is "eighteen million, seven hundred ninety-five thousand, four hundred forty-nine".