2606638 has 8 divisors (see below), whose sum is σ = 3940200. Its totient is φ = 1293240.

The previous prime is 2606633. The next prime is 2606651. The reversal of 2606638 is 8366062.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2606633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4713 + ... + 5236.

It is an arithmetic number, because the mean of its divisors is an integer number (492525).

2^2606638 is an apocalyptic number.

2606638 is a deficient number, since it is larger than the sum of its proper divisors (1333562).

2606638 is a wasteful number, since it uses less digits than its factorization.

2606638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10082.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 2606638 is about 1614.5085939691. The cubic root of 2606638 is about 137.6238091462.

The spelling of 2606638 in words is "two million, six hundred six thousand, six hundred thirty-eight".