194426365 has 24 divisors (see below), whose sum is σ = 287374392. Its totient is φ = 125475840.

The previous prime is 194426363. The next prime is 194426381. The reversal of 194426365 is 563624491.

It can be written as a sum of positive squares in 4 ways, for example, as 107619876 + 86806489 = 10374^2 + 9317^2 .

It is not a de Polignac number, because 194426365 - 2¹ = 194426363 is a prime.

It is a super-2 number, since 2×194426365² = 75603222814226450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194426363) 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 23 ways as a sum of consecutive naturals, for example, 19176 + ... + 27505.

It is an arithmetic number, because the mean of its divisors is an integer number (11973933).

Almost surely, 2^194426365 is an apocalyptic number.

It is an amenable number.

194426365 is a deficient number, since it is larger than the sum of its proper divisors (92948027).

194426365 is a wasteful number, since it uses less digits than its factorization.

194426365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46717 (or 46710 counting only the distinct ones).

The product of its digits is 155520, while the sum is 40.

The square root of 194426365 is about 13943.6854884209. The cubic root of 194426365 is about 579.3198179825.

The spelling of 194426365 in words is "one hundred ninety-four million, four hundred twenty-six thousand, three hundred sixty-five".