194145400 has 48 divisors (see below), whose sum is σ = 459066600. Its totient is φ = 76337280.

The previous prime is 194145379. The next prime is 194145407. The reversal of 194145400 is 4541491.

194145400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194145407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3574 + ... + 20026.

Almost surely, 2^194145400 is an apocalyptic number.

194145400 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 194145400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229533300).

194145400 is an abundant number, since it is smaller than the sum of its proper divisors (264921200).

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

194145400 is a wasteful number, since it uses less digits than its factorization.

194145400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16528 (or 16519 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 194145400 is about 13933.6068553695. The cubic root of 194145400 is about 579.0406256326.

Adding to 194145400 its reverse (4541491), we get a palindrome (198686891).

The spelling of 194145400 in words is "one hundred ninety-four million, one hundred forty-five thousand, four hundred".