194328420 has 288 divisors, whose sum is σ = 675682560. Its totient is φ = 41395200.

The previous prime is 194328389. The next prime is 194328457. The reversal of 194328420 is 24823491.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2736985 + ... + 2737055.

It is an arithmetic number, because the mean of its divisors is an integer number (2346120).

Almost surely, 2^194328420 is an apocalyptic number.

194328420 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 194328420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337841280).

194328420 is an abundant number, since it is smaller than the sum of its proper divisors (481354140).

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

194328420 is a wasteful number, since it uses less digits than its factorization.

194328420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 194328420 is about 13940.1728827156. The cubic root of 194328420 is about 579.2225214895. Note that the first 3 decimals are identical.

The spelling of 194328420 in words is "one hundred ninety-four million, three hundred twenty-eight thousand, four hundred twenty".