194399949 has 8 divisors (see below), whose sum is σ = 262750912. Its totient is φ = 127824480.

The previous prime is 194399923. The next prime is 194399951. The reversal of 194399949 is 949993491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 194399949 - 2²³ = 186011341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194399969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443617 + ... + 444054.

It is an arithmetic number, because the mean of its divisors is an integer number (32843864).

Almost surely, 2^194399949 is an apocalyptic number.

It is an amenable number.

194399949 is a deficient number, since it is larger than the sum of its proper divisors (68350963).

194399949 is an equidigital number, since it uses as much as digits as its factorization.

194399949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887747.

The product of its digits is 2834352, while the sum is 57.

The square root of 194399949 is about 13942.7382174378. The cubic root of 194399949 is about 579.2935801050.

The spelling of 194399949 in words is "one hundred ninety-four million, three hundred ninety-nine thousand, nine hundred forty-nine".