20394192 has 240 divisors, whose sum is σ = 71245440. Its totient is φ = 4967424.

The previous prime is 20394173. The next prime is 20394233. The reversal of 20394192 is 29149302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 703234 + ... + 703262.

It is an arithmetic number, because the mean of its divisors is an integer number (296856).

Almost surely, 2^20394192 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 20394192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35622720).

20394192 is an abundant number, since it is smaller than the sum of its proper divisors (50851248).

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

20394192 is a wasteful number, since it uses less digits than its factorization.

20394192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 20394192 is about 4515.9929140777. The cubic root of 20394192 is about 273.2135081894.

It can be divided in two parts, 203 and 94192, that added together give a triangular number (94395 = T₄₃₄).

The spelling of 20394192 in words is "twenty million, three hundred ninety-four thousand, one hundred ninety-two".