2643401 has 8 divisors (see below), whose sum is σ = 2769408. Its totient is φ = 2520000.

The previous prime is 2643397. The next prime is 2643427. The reversal of 2643401 is 1043462.

It is a happy number.

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 2643401 - 2² = 2643397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2643461) 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, 1601 + ... + 2801.

It is an arithmetic number, because the mean of its divisors is an integer number (346176).

2^2643401 is an apocalyptic number.

It is an amenable number.

2643401 is a deficient number, since it is larger than the sum of its proper divisors (126007).

2643401 is a wasteful number, since it uses less digits than its factorization.

2643401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2643401 is about 1625.8539294783. The cubic root of 2643401 is about 138.2677884999.

Adding to 2643401 its reverse (1043462), we get a palindrome (3686863).

The spelling of 2643401 in words is "two million, six hundred forty-three thousand, four hundred one".