2599401 has 12 divisors (see below), whose sum is σ = 4031952. Its totient is φ = 1485288.

The previous prime is 2599397. The next prime is 2599403. The reversal of 2599401 is 1049952.

It is a happy number.

It is not a de Polignac number, because 2599401 - 2² = 2599397 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2599403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8695 + ... + 8988.

It is an arithmetic number, because the mean of its divisors is an integer number (335996).

2^2599401 is an apocalyptic number.

2599401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2599401 is a deficient number, since it is larger than the sum of its proper divisors (1432551).

2599401 is a wasteful number, since it uses less digits than its factorization.

2599401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17700 (or 17693 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 2599401 is about 1612.2657969454. The cubic root of 2599401 is about 137.4963260726.

The spelling of 2599401 in words is "two million, five hundred ninety-nine thousand, four hundred one".