810144401 has 32 divisors (see below), whose sum is σ = 994705920. Its totient is φ = 650246400.

The previous prime is 810144397. The next prime is 810144407. The reversal of 810144401 is 104441018.

It is a cyclic number.

It is not a de Polignac number, because 810144401 - 2² = 810144397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (810144407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 379106 + ... + 381236.

It is an arithmetic number, because the mean of its divisors is an integer number (31084560).

Almost surely, 2^810144401 is an apocalyptic number.

It is an amenable number.

810144401 is a deficient number, since it is larger than the sum of its proper divisors (184561519).

810144401 is a wasteful number, since it uses less digits than its factorization.

810144401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 810144401 is about 28463.0356954419. The cubic root of 810144401 is about 932.2251420109.

Adding to 810144401 its reverse (104441018), we get a palindrome (914585419).

The spelling of 810144401 in words is "eight hundred ten million, one hundred forty-four thousand, four hundred one".