2606401 has 8 divisors (see below), whose sum is σ = 3135680. Its totient is φ = 2116368.

The previous prime is 2606393. The next prime is 2606407. The reversal of 2606401 is 1046062.

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 2606401 - 2³ = 2606393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2606407) 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, 9666 + ... + 9931.

It is an arithmetic number, because the mean of its divisors is an integer number (391960).

2^2606401 is an apocalyptic number.

It is an amenable number.

2606401 is a deficient number, since it is larger than the sum of its proper divisors (529279).

2606401 is a wasteful number, since it uses less digits than its factorization.

2606401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19623.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2606401 is about 1614.4351953547. The cubic root of 2606401 is about 137.6196380222.

The spelling of 2606401 in words is "two million, six hundred six thousand, four hundred one".