404540101 has 8 divisors (see below), whose sum is σ = 464753664. Its totient is φ = 344932080.

The previous prime is 404540099. The next prime is 404540117. The reversal of 404540101 is 101045404.

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

It is a cyclic number.

It is not a de Polignac number, because 404540101 - 2¹ = 404540099 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 (404540141) 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 7 ways as a sum of consecutive naturals, for example, 149950 + ... + 152623.

It is an arithmetic number, because the mean of its divisors is an integer number (58094208).

Almost surely, 2^404540101 is an apocalyptic number.

It is an amenable number.

404540101 is a deficient number, since it is larger than the sum of its proper divisors (60213563).

404540101 is a wasteful number, since it uses less digits than its factorization.

404540101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302771.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 404540101 is about 20113.1822693476. The cubic root of 404540101 is about 739.5834647545.

Adding to 404540101 its reverse (101045404), we get a palindrome (505585505).

The spelling of 404540101 in words is "four hundred four million, five hundred forty thousand, one hundred one".