373819949 has 2 divisors, whose sum is σ = 373819950. Its totient is φ = 373819948.

The previous prime is 373819931. The next prime is 373819951. The reversal of 373819949 is 949918373.

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., 194742025 + 179077924 = 13955^2 + 13382^2 .

It is an emirp because it is prime and its reverse (949918373) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 373819949 - 2¹² = 373815853 is a prime.

Together with 373819951, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 373819949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (373819909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186909974 + 186909975.

It is an arithmetic number, because the mean of its divisors is an integer number (186909975).

Almost surely, 2^373819949 is an apocalyptic number.

It is an amenable number.

373819949 is a deficient number, since it is larger than the sum of its proper divisors (1).

373819949 is an equidigital number, since it uses as much as digits as its factorization.

373819949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 53.

The square root of 373819949 is about 19334.4239376300. The cubic root of 373819949 is about 720.3675778711.

The spelling of 373819949 in words is "three hundred seventy-three million, eight hundred nineteen thousand, nine hundred forty-nine".