194749650 has 48 divisors (see below), whose sum is σ = 536647200. Its totient is φ = 51932880.

The previous prime is 194749591. The next prime is 194749661. The reversal of 194749650 is 56947491.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 194749596 and 194749605.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70780 + ... + 73479.

It is an arithmetic number, because the mean of its divisors is an integer number (11180150).

Almost surely, 2^194749650 is an apocalyptic number.

194749650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

194749650 is an abundant number, since it is smaller than the sum of its proper divisors (341897550).

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

194749650 is a wasteful number, since it uses less digits than its factorization.

194749650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144280 (or 144269 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 194749650 is about 13955.2731968959. The cubic root of 194749650 is about 579.6407307342.

The spelling of 194749650 in words is "one hundred ninety-four million, seven hundred forty-nine thousand, six hundred fifty".