2600421 has 8 divisors (see below), whose sum is σ = 3500064. Its totient is φ = 1717200.

The previous prime is 2600417. The next prime is 2600453. The reversal of 2600421 is 1240062.

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

It is not a de Polignac number, because 2600421 - 2² = 2600417 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2600421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2600461) 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, 3730 + ... + 4371.

It is an arithmetic number, because the mean of its divisors is an integer number (437508).

2^2600421 is an apocalyptic number.

It is an amenable number.

2600421 is a deficient number, since it is larger than the sum of its proper divisors (899643).

2600421 is a wasteful number, since it uses less digits than its factorization.

2600421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8211.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2600421 is about 1612.5820909337. The cubic root of 2600421 is about 137.5143081529.

Adding to 2600421 its reverse (1240062), we get a palindrome (3840483).

The spelling of 2600421 in words is "two million, six hundred thousand, four hundred twenty-one".