2816401 has 4 divisors (see below), whose sum is σ = 3218752. Its totient is φ = 2414052.

The previous prime is 2816399. The next prime is 2816453. The reversal of 2816401 is 1046182.

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 not a de Polignac number, because 2816401 - 2¹ = 2816399 is a prime.

It is a super-2 number, since 2×2816401² = 15864229185602, which contains 22 as substring.

It is a Duffinian number.

2816401 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2816501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201165 + ... + 201178.

It is an arithmetic number, because the mean of its divisors is an integer number (804688).

2^2816401 is an apocalyptic number.

It is an amenable number.

2816401 is a deficient number, since it is larger than the sum of its proper divisors (402351).

2816401 is an equidigital number, since it uses as much as digits as its factorization.

2816401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402350.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 2816401 is about 1678.2136335997. The cubic root of 2816401 is about 141.2206360763.

The spelling of 2816401 in words is "two million, eight hundred sixteen thousand, four hundred one".