4080401 has 8 divisors (see below), whose sum is σ = 4413864. Its totient is φ = 3749760.

The previous prime is 4080359. The next prime is 4080403. The reversal of 4080401 is 1040804.

It is a happy number.

It is a Cunningham number, because it is equal to 2020²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 4080400 = 1^2 + 2020^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4080401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4080401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4080403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3095 + ... + 4211.

It is an arithmetic number, because the mean of its divisors is an integer number (551733).

Almost surely, 2^4080401 is an apocalyptic number.

It is an amenable number.

4080401 is a deficient number, since it is larger than the sum of its proper divisors (333463).

4080401 is a wasteful number, since it uses less digits than its factorization.

4080401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 4080401 is about 2020.0002475247. Note that the first 3 decimals coincide. The cubic root of 4080401 is about 159.7966296334.

The spelling of 4080401 in words is "four million, eighty thousand, four hundred one".