404030401 has 4 divisors (see below), whose sum is σ = 408030804. Its totient is φ = 400030000.

The previous prime is 404030353. The next prime is 404030413. The reversal of 404030401 is 104030404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 297528001 + 106502400 = 17249^2 + 10320^2 .

It is a cyclic number.

It is not a de Polignac number, because 404030401 - 2²⁵ = 370475969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404030201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2000050 + ... + 2000251.

It is an arithmetic number, because the mean of its divisors is an integer number (102007701).

Almost surely, 2^404030401 is an apocalyptic number.

It is an amenable number.

404030401 is a deficient number, since it is larger than the sum of its proper divisors (4000403).

404030401 is a wasteful number, since it uses less digits than its factorization.

404030401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4000402.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 404030401 is about 20100.5074811558. The cubic root of 404030401 is about 739.2727216653.

Adding to 404030401 its reverse (104030404), we get a palindrome (508060805).

The spelling of 404030401 in words is "four hundred four million, thirty thousand, four hundred one".