404030101 has 4 divisors (see below), whose sum is σ = 404072704. Its totient is φ = 403987500.

The previous prime is 404030093. The next prime is 404030111. The reversal of 404030101 is 101030404.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 404030101 - 2³ = 404030093 is a prime.

It is the 20101-st Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404030111) by changing a digit.

It is a nontrivial repunit in base 20100.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76 + ... + 28426.

It is an arithmetic number, because the mean of its divisors is an integer number (101018176).

Almost surely, 2^404030101 is an apocalyptic number.

It is an amenable number.

404030101 is a deficient number, since it is larger than the sum of its proper divisors (42603).

404030101 is a wasteful number, since it uses less digits than its factorization.

404030101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42602.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 404030101 is about 20100.5000186563. The cubic root of 404030101 is about 739.2725386907.

Adding to 404030101 its reverse (101030404), we get a palindrome (505060505).

The spelling of 404030101 in words is "four hundred four million, thirty thousand, one hundred one".