194115420 has 192 divisors, whose sum is σ = 629959680. Its totient is φ = 49593600.

The previous prime is 194115391. The next prime is 194115421. The reversal of 194115420 is 24511491.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194115421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2338699 + ... + 2338781.

It is an arithmetic number, because the mean of its divisors is an integer number (3281040).

Almost surely, 2^194115420 is an apocalyptic number.

194115420 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 194115420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314979840).

194115420 is an abundant number, since it is smaller than the sum of its proper divisors (435844260).

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

194115420 is a wasteful number, since it uses less digits than its factorization.

194115420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 194115420 is about 13932.5309976328. The cubic root of 194115420 is about 579.0108188802.

The spelling of 194115420 in words is "one hundred ninety-four million, one hundred fifteen thousand, four hundred twenty".