394332101 has 4 divisors (see below), whose sum is σ = 398160672. Its totient is φ = 390503532.

The previous prime is 394332089. The next prime is 394332143. The reversal of 394332101 is 101233493.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101233493 = 1613 ⋅62761.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-394332101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394332151) 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 3 ways as a sum of consecutive naturals, for example, 1914131 + ... + 1914336.

It is an arithmetic number, because the mean of its divisors is an integer number (99540168).

Almost surely, 2^394332101 is an apocalyptic number.

It is an amenable number.

394332101 is a deficient number, since it is larger than the sum of its proper divisors (3828571).

394332101 is a wasteful number, since it uses less digits than its factorization.

394332101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3828570.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 394332101 is about 19857.7969825457. The cubic root of 394332101 is about 733.3096118819.

Adding to 394332101 its reverse (101233493), we get a palindrome (495565594).

The spelling of 394332101 in words is "three hundred ninety-four million, three hundred thirty-two thousand, one hundred one".