194972616 has 64 divisors (see below), whose sum is σ = 543182400. Its totient is φ = 64800000.

The previous prime is 194972599. The next prime is 194972627. The reversal of 194972616 is 616279491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85491 + ... + 87741.

It is an arithmetic number, because the mean of its divisors is an integer number (8487225).

Almost surely, 2^194972616 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 194972616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271591200).

194972616 is an abundant number, since it is smaller than the sum of its proper divisors (348209784).

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

194972616 is a wasteful number, since it uses less digits than its factorization.

194972616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2667 (or 2657 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 194972616 is about 13963.2595048577. The cubic root of 194972616 is about 579.8618537414.

The spelling of 194972616 in words is "one hundred ninety-four million, nine hundred seventy-two thousand, six hundred sixteen".