194252620 has 24 divisors (see below), whose sum is σ = 408358944. Its totient is φ = 77619456.

The previous prime is 194252573. The next prime is 194252623. The reversal of 194252620 is 26252491.

It is not an unprimeable number, because it can be changed into a prime (194252623) 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 7 ways as a sum of consecutive naturals, for example, 16692 + ... + 25828.

It is an arithmetic number, because the mean of its divisors is an integer number (17014956).

Almost surely, 2^194252620 is an apocalyptic number.

194252620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194252620 is an abundant number, since it is smaller than the sum of its proper divisors (214106324).

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

194252620 is a wasteful number, since it uses less digits than its factorization.

194252620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10209 (or 10207 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 194252620 is about 13937.4538564259. The cubic root of 194252620 is about 579.1472009284.

The spelling of 194252620 in words is "one hundred ninety-four million, two hundred fifty-two thousand, six hundred twenty".