320798194 has 16 divisors (see below), whose sum is σ = 511499448. Its totient is φ = 150372352.

The previous prime is 320798173. The next prime is 320798197. The reversal of 320798194 is 491897023.

It can be written as a sum of positive squares in 4 ways, for example, as 295668025 + 25130169 = 17195^2 + 5013^2 .

It is a super-2 number, since 2×320798194² = 205822962547323272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320798194.

It is not an unprimeable number, because it can be changed into a prime (320798197) 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 7 ways as a sum of consecutive naturals, for example, 9619 + ... + 27094.

Almost surely, 2^320798194 is an apocalyptic number.

320798194 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

320798194 is a deficient number, since it is larger than the sum of its proper divisors (190701254).

320798194 is a wasteful number, since it uses less digits than its factorization.

320798194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36989.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 320798194 is about 17910.8401254659. The cubic root of 320798194 is about 684.5586116990.

The spelling of 320798194 in words is "three hundred twenty million, seven hundred ninety-eight thousand, one hundred ninety-four".