190444949 has 2 divisors, whose sum is σ = 190444950. Its totient is φ = 190444948.

The previous prime is 190444939. The next prime is 190444951. The reversal of 190444949 is 949444091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187827025 + 2617924 = 13705^2 + 1618^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190444949 is a prime.

It is a super-2 number, since 2×190444949² = 72538557199225202, which contains 22 as substring.

Together with 190444951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190444939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95222474 + 95222475.

It is an arithmetic number, because the mean of its divisors is an integer number (95222475).

Almost surely, 2^190444949 is an apocalyptic number.

It is an amenable number.

190444949 is a deficient number, since it is larger than the sum of its proper divisors (1).

190444949 is an equidigital number, since it uses as much as digits as its factorization.

190444949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 190444949 is about 13800.1793104293. The cubic root of 190444949 is about 575.3381240033.

The spelling of 190444949 in words is "one hundred ninety million, four hundred forty-four thousand, nine hundred forty-nine".