1904414401 has 4 divisors (see below), whose sum is σ = 1948703152. Its totient is φ = 1860125652.

The previous prime is 1904414389. The next prime is 1904414419. The reversal of 1904414401 is 1044144091.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1904414401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1904414401.

It is not an unprimeable number, because it can be changed into a prime (1904414801) 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, 22144311 + ... + 22144396.

It is an arithmetic number, because the mean of its divisors is an integer number (487175788).

Almost surely, 2^1904414401 is an apocalyptic number.

It is an amenable number.

1904414401 is a deficient number, since it is larger than the sum of its proper divisors (44288751).

1904414401 is an equidigital number, since it uses as much as digits as its factorization.

1904414401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44288750.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1904414401 is about 43639.5967098689. The cubic root of 1904414401 is about 1239.5208001381.

Adding to 1904414401 its reverse (1044144091), we get a palindrome (2948558492).

The spelling of 1904414401 in words is "one billion, nine hundred four million, four hundred fourteen thousand, four hundred one".