404037401 has 4 divisors (see below), whose sum is σ = 404162100. Its totient is φ = 403912704.

The previous prime is 404037397. The next prime is 404037479. The reversal of 404037401 is 104730404.

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 152497801 + 251539600 = 12349^2 + 15860^2 .

It is a cyclic number.

It is not a de Polignac number, because 404037401 - 2² = 404037397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404037701) 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, 57356 + ... + 64013.

It is an arithmetic number, because the mean of its divisors is an integer number (101040525).

Almost surely, 2^404037401 is an apocalyptic number.

It is an amenable number.

404037401 is a deficient number, since it is larger than the sum of its proper divisors (124699).

404037401 is a wasteful number, since it uses less digits than its factorization.

404037401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124698.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 404037401 is about 20100.6816053586. The cubic root of 404037401 is about 739.2769910463.

Adding to 404037401 its reverse (104730404), we get a palindrome (508767805).

The spelling of 404037401 in words is "four hundred four million, thirty-seven thousand, four hundred one".