26639942 has 16 divisors (see below), whose sum is σ = 45925152. Its totient is φ = 11352960.

The previous prime is 26639941. The next prime is 26639953. The reversal of 26639942 is 24993662.

It is a self number, because there is not a number n which added to its sum of digits gives 26639942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26639941) 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, 2723 + ... + 7790.

It is an arithmetic number, because the mean of its divisors is an integer number (2870322).

Almost surely, 2^26639942 is an apocalyptic number.

26639942 is a deficient number, since it is larger than the sum of its proper divisors (19285210).

26639942 is a wasteful number, since it uses less digits than its factorization.

26639942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10703.

The product of its digits is 139968, while the sum is 41.

The square root of 26639942 is about 5161.3895415866. The cubic root of 26639942 is about 298.6604797050.

The spelling of 26639942 in words is "twenty-six million, six hundred thirty-nine thousand, nine hundred forty-two".