194607648 has 72 divisors (see below), whose sum is σ = 566947836. Its totient is φ = 63283200.

The previous prime is 194607643. The next prime is 194607703. The reversal of 194607648 is 846706491.

It can be written as a sum of positive squares in 2 ways, for example, as 173923344 + 20684304 = 13188^2 + 4548^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194607643) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3568 + ... + 20048.

Almost surely, 2^194607648 is an apocalyptic number.

194607648 is a gapful number since it is divisible by the number (18) 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 194607648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283473918).

194607648 is an abundant number, since it is smaller than the sum of its proper divisors (372340188).

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

194607648 is a wasteful number, since it uses less digits than its factorization.

194607648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16538 (or 16527 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 194607648 is about 13950.1845149088. The cubic root of 194607648 is about 579.4998145088.

The spelling of 194607648 in words is "one hundred ninety-four million, six hundred seven thousand, six hundred forty-eight".