394121 has 16 divisors (see below), whose sum is σ = 499968. Its totient is φ = 302400.

The previous prime is 394099. The next prime is 394123. The reversal of 394121 is 121493.

It is not a de Polignac number, because 394121 - 2¹⁰ = 393097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 394093 and 394102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5516 + ... + 5586.

It is an arithmetic number, because the mean of its divisors is an integer number (31248).

2³⁹⁴¹²¹ is an apocalyptic number.

It is an amenable number.

394121 is a deficient number, since it is larger than the sum of its proper divisors (105847).

394121 is a wasteful number, since it uses less digits than its factorization.

394121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152.

The product of its digits is 216, while the sum is 20.

The square root of 394121 is about 627.7905701745. The cubic root of 394121 is about 73.3178732331.

It can be divided in two parts, 394 and 121, that multiplied together give a palindrome (47674).

The spelling of 394121 in words is "three hundred ninety-four thousand, one hundred twenty-one".