26421604 has 24 divisors (see below), whose sum is σ = 53409888. Its totient is φ = 11303040.

The previous prime is 26421599. The next prime is 26421607. The reversal of 26421604 is 40612462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26421607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16914 + ... + 18409.

It is an arithmetic number, because the mean of its divisors is an integer number (2225412).

Almost surely, 2^26421604 is an apocalyptic number.

It is an amenable number.

26421604 is an abundant number, since it is smaller than the sum of its proper divisors (26988284).

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

26421604 is a wasteful number, since it uses less digits than its factorization.

26421604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35355 (or 35353 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 26421604 is about 5140.1949379377. The cubic root of 26421604 is about 297.8423110592.

The spelling of 26421604 in words is "twenty-six million, four hundred twenty-one thousand, six hundred four".