394540101 has 12 divisors (see below), whose sum is σ = 570200800. Its totient is φ = 262883880.

The previous prime is 394540067. The next prime is 394540117. The reversal of 394540101 is 101045493.

It is not a de Polignac number, because 394540101 - 2¹³ = 394531909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394540151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7200 + ... + 28998.

Almost surely, 2^394540101 is an apocalyptic number.

It is an amenable number.

394540101 is a deficient number, since it is larger than the sum of its proper divisors (175660699).

394540101 is a wasteful number, since it uses less digits than its factorization.

394540101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23816 (or 23813 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 394540101 is about 19863.0335296500. The cubic root of 394540101 is about 733.4385231798.

Adding to 394540101 its reverse (101045493), we get a palindrome (495585594).

The spelling of 394540101 in words is "three hundred ninety-four million, five hundred forty thousand, one hundred one".