194649264 has 80 divisors (see below), whose sum is σ = 564071040. Its totient is φ = 64261440.

The previous prime is 194649251. The next prime is 194649283. The reversal of 194649264 is 462946491.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44119 + ... + 48329.

It is an arithmetic number, because the mean of its divisors is an integer number (7050888).

Almost surely, 2^194649264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194649264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282035520).

194649264 is an abundant number, since it is smaller than the sum of its proper divisors (369421776).

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

194649264 is a wasteful number, since it uses less digits than its factorization.

194649264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4335 (or 4323 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 194649264 is about 13951.6760283487. The cubic root of 194649264 is about 579.5411194039.

The spelling of 194649264 in words is "one hundred ninety-four million, six hundred forty-nine thousand, two hundred sixty-four".