368221819 has 16 divisors (see below), whose sum is σ = 454680000. Its totient is φ = 297048192.

The previous prime is 368221801. The next prime is 368221849. The reversal of 368221819 is 918122863.

It is not a de Polignac number, because 368221819 - 2¹³ = 368213627 is a prime.

It is a super-2 number, since 2×368221819² = 271174615975337522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (368221849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25744 + ... + 37405.

It is an arithmetic number, because the mean of its divisors is an integer number (28417500).

Almost surely, 2^368221819 is an apocalyptic number.

368221819 is a deficient number, since it is larger than the sum of its proper divisors (86458181).

368221819 is an equidigital number, since it uses as much as digits as its factorization.

368221819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63187 (or 63173 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 368221819 is about 19189.1067796289. The cubic root of 368221819 is about 716.7535286340.

The spelling of 368221819 in words is "three hundred sixty-eight million, two hundred twenty-one thousand, eight hundred nineteen".