2601906 has 8 divisors (see below), whose sum is σ = 5203824. Its totient is φ = 867300.

The previous prime is 2601899. The next prime is 2601913. The reversal of 2601906 is 6091062.

It is an interprime number because it is at equal distance from previous prime (2601899) and next prime (2601913).

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

2601906 is an admirable number.

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 216820 + ... + 216831.

It is an arithmetic number, because the mean of its divisors is an integer number (650478).

2^2601906 is an apocalyptic number.

2601906 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2601906 is a wasteful number, since it uses less digits than its factorization.

2601906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433656.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 2601906 is about 1613.0424668929. The cubic root of 2601906 is about 137.5404795418.

Adding to 2601906 its reverse (6091062), we get a palindrome (8692968).

The spelling of 2601906 in words is "two million, six hundred one thousand, nine hundred six".