26421602 has 4 divisors (see below), whose sum is σ = 39632406. Its totient is φ = 13210800.

The previous prime is 26421599. The next prime is 26421607. The reversal of 26421602 is 20612462.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20511841 + 5909761 = 4529^2 + 2431^2 .

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 as a sum of consecutive naturals, namely, 6605399 + ... + 6605402.

Almost surely, 2^26421602 is an apocalyptic number.

26421602 is a deficient number, since it is larger than the sum of its proper divisors (13210804).

26421602 is a wasteful number, since it uses less digits than its factorization.

26421602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13210803.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 26421602 is about 5140.1947433925. The cubic root of 26421602 is about 297.8423035440.

The spelling of 26421602 in words is "twenty-six million, four hundred twenty-one thousand, six hundred two".