194444420 has 24 divisors (see below), whose sum is σ = 422415000. Its totient is φ = 75095552.

The previous prime is 194444381. The next prime is 194444473. The reversal of 194444420 is 24444491.

It can be written as a sum of positive squares in 4 ways, for example, as 63616576 + 130827844 = 7976^2 + 11438^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167045 + ... + 168204.

It is an arithmetic number, because the mean of its divisors is an integer number (17600625).

Almost surely, 2^194444420 is an apocalyptic number.

194444420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194444420 is an abundant number, since it is smaller than the sum of its proper divisors (227970580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

194444420 is a wasteful number, since it uses less digits than its factorization.

194444420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335287 (or 335285 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 194444420 is about 13944.3328990669. The cubic root of 194444420 is about 579.3377498707.

It can be divided in two parts, 1944 and 44420, that added together give a palindrome (46364).

The spelling of 194444420 in words is "one hundred ninety-four million, four hundred forty-four thousand, four hundred twenty".