194680620 has 144 divisors (see below), whose sum is σ = 616412160. Its totient is φ = 49680000.

The previous prime is 194680601. The next prime is 194680621. The reversal of 194680620 is 26086491.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (194680621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 775495 + ... + 775745.

It is an arithmetic number, because the mean of its divisors is an integer number (4280640).

Almost surely, 2^194680620 is an apocalyptic number.

194680620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194680620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308206080).

194680620 is an abundant number, since it is smaller than the sum of its proper divisors (421731540).

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

194680620 is a wasteful number, since it uses less digits than its factorization.

194680620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 194680620 is about 13952.7997190528. The cubic root of 194680620 is about 579.5722371098.

The spelling of 194680620 in words is "one hundred ninety-four million, six hundred eighty thousand, six hundred twenty".