26140830 has 32 divisors (see below), whose sum is σ = 62877600. Its totient is φ = 6955392.

The previous prime is 26140823. The next prime is 26140831. The reversal of 26140830 is 3804162.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 26140830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26140831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20656 + ... + 21884.

It is an arithmetic number, because the mean of its divisors is an integer number (1964925).

Almost surely, 2^26140830 is an apocalyptic number.

26140830 is an abundant number, since it is smaller than the sum of its proper divisors (36736770).

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

26140830 is a wasteful number, since it uses less digits than its factorization.

26140830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 26140830 is about 5112.8103817763. The cubic root of 26140830 is about 296.7835264624.

Adding to 26140830 its reverse (3804162), we get a palindrome (29944992).

The spelling of 26140830 in words is "twenty-six million, one hundred forty thousand, eight hundred thirty".