26164442 has 4 divisors (see below), whose sum is σ = 39246666. Its totient is φ = 13082220.

The previous prime is 26164429. The next prime is 26164447. The reversal of 26164442 is 24446162.

It is a happy number.

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., 21631801 + 4532641 = 4651^2 + 2129^2 .

It is not an unprimeable number, because it can be changed into a prime (26164447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6541109 + ... + 6541112.

Almost surely, 2^26164442 is an apocalyptic number.

26164442 is a deficient number, since it is larger than the sum of its proper divisors (13082224).

26164442 is a wasteful number, since it uses less digits than its factorization.

26164442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13082223.

The product of its digits is 9216, while the sum is 29.

The square root of 26164442 is about 5115.1189624485. The cubic root of 26164442 is about 296.8728572625.

The spelling of 26164442 in words is "twenty-six million, one hundred sixty-four thousand, four hundred forty-two".