194503650 has 48 divisors (see below), whose sum is σ = 526225248. Its totient is φ = 47152000.

The previous prime is 194503649. The next prime is 194503651. The reversal of 194503650 is 56305491.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (194503649) and next prime (194503651).

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (194503651) 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 23 ways as a sum of consecutive naturals, for example, 57291 + ... + 60590.

It is an arithmetic number, because the mean of its divisors is an integer number (10963026).

Almost surely, 2^194503650 is an apocalyptic number.

194503650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

194503650 is an abundant number, since it is smaller than the sum of its proper divisors (331721598).

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

194503650 is a wasteful number, since it uses less digits than its factorization.

194503650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117907 (or 117902 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 194503650 is about 13946.4565392074. The cubic root of 194503650 is about 579.3965682062.

The spelling of 194503650 in words is "one hundred ninety-four million, five hundred three thousand, six hundred fifty".