1804400232401 has 8 divisors (see below), whose sum is σ = 2010207155880. Its totient is φ = 1608165724032.

The previous prime is 1804400232389. The next prime is 1804400232577. The reversal of 1804400232401 is 1042320044081.

It can be written as a sum of positive squares in 4 ways, for example, as 44784717376 + 1759615515025 = 211624^2 + 1326505^2 .

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 1804400232401 - 2³⁰ = 1803326490577 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1804400231401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2393103380 + ... + 2393104133.

It is an arithmetic number, because the mean of its divisors is an integer number (251275894485).

Almost surely, 2^{1804400232401} is an apocalyptic number.

It is an amenable number.

1804400232401 is a deficient number, since it is larger than the sum of its proper divisors (205806923479).

1804400232401 is a wasteful number, since it uses less digits than its factorization.

1804400232401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4786207555.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 1804400232401 its reverse (1042320044081), we get a palindrome (2846720276482).

The spelling of 1804400232401 in words is "one trillion, eight hundred four billion, four hundred million, two hundred thirty-two thousand, four hundred one".