20394958 has 8 divisors (see below), whose sum is σ = 31338720. Its totient is φ = 9948720.

The previous prime is 20394953. The next prime is 20394977. The reversal of 20394958 is 85949302.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20394958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20394953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124278 + ... + 124441.

It is an arithmetic number, because the mean of its divisors is an integer number (3917340).

Almost surely, 2^20394958 is an apocalyptic number.

20394958 is a deficient number, since it is larger than the sum of its proper divisors (10943762).

20394958 is a wasteful number, since it uses less digits than its factorization.

20394958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248762.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 20394958 is about 4516.0777229804. The cubic root of 20394958 is about 273.2169287536.

The spelling of 20394958 in words is "twenty million, three hundred ninety-four thousand, nine hundred fifty-eight".