1842807949 has 2 divisors, whose sum is σ = 1842807950. Its totient is φ = 1842807948.

The previous prime is 1842807899. The next prime is 1842807959. The reversal of 1842807949 is 9497082481.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1756448100 + 86359849 = 41910^2 + 9293^2 .

It is an emirp because it is prime and its reverse (9497082481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1842807949 - 2⁹ = 1842807437 is a prime.

It is a super-2 number, since 2×1842807949² = 6791882273795173202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1842807896 and 1842807905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1842807959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 921403974 + 921403975.

It is an arithmetic number, because the mean of its divisors is an integer number (921403975).

Almost surely, 2^1842807949 is an apocalyptic number.

It is an amenable number.

1842807949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1842807949 is an equidigital number, since it uses as much as digits as its factorization.

1842807949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 1842807949 is about 42927.9390257674. The cubic root of 1842807949 is about 1226.0081550002.

The spelling of 1842807949 in words is "one billion, eight hundred forty-two million, eight hundred seven thousand, nine hundred forty-nine".