1884994949 has 2 divisors, whose sum is σ = 1884994950. Its totient is φ = 1884994948.

The previous prime is 1884994871. The next prime is 1884994957. The reversal of 1884994949 is 9494994881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1184598724 + 700396225 = 34418^2 + 26465^2 .

It is a cyclic number.

It is not a de Polignac number, because 1884994949 - 2¹² = 1884990853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1884994249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 942497474 + 942497475.

It is an arithmetic number, because the mean of its divisors is an integer number (942497475).

Almost surely, 2^1884994949 is an apocalyptic number.

It is an amenable number.

1884994949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1884994949 is an equidigital number, since it uses as much as digits as its factorization.

1884994949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26873856, while the sum is 65.

The square root of 1884994949 is about 43416.5285231328. The cubic root of 1884994949 is about 1235.2932366023.

The spelling of 1884994949 in words is "one billion, eight hundred eighty-four million, nine hundred ninety-four thousand, nine hundred forty-nine".