194341520 has 20 divisors (see below), whose sum is σ = 451844220. Its totient is φ = 77736576.

The previous prime is 194341493. The next prime is 194341523. The reversal of 194341520 is 25143491.

It can be written as a sum of positive squares in 2 ways, for example, as 23464336 + 170877184 = 4844^2 + 13072^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (194341523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1214555 + ... + 1214714.

It is an arithmetic number, because the mean of its divisors is an integer number (22592211).

Almost surely, 2^194341520 is an apocalyptic number.

194341520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194341520 is an abundant number, since it is smaller than the sum of its proper divisors (257502700).

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

194341520 is a wasteful number, since it uses less digits than its factorization.

194341520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429282 (or 2429276 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 194341520 is about 13940.6427398452. The cubic root of 194341520 is about 579.2355366463.

The spelling of 194341520 in words is "one hundred ninety-four million, three hundred forty-one thousand, five hundred twenty".