26000172 has 36 divisors (see below), whose sum is σ = 71698536. Its totient is φ = 7878720.

The previous prime is 26000167. The next prime is 26000173. The reversal of 26000172 is 27100062.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26000173) 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 11 ways as a sum of consecutive naturals, for example, 32433 + ... + 33224.

It is an arithmetic number, because the mean of its divisors is an integer number (1991626).

Almost surely, 2^26000172 is an apocalyptic number.

26000172 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

26000172 is an abundant number, since it is smaller than the sum of its proper divisors (45698364).

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

26000172 is a wasteful number, since it uses less digits than its factorization.

26000172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65678 (or 65673 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 26000172 is about 5099.0363795525. The cubic root of 26000172 is about 296.2502601077.

The spelling of 26000172 in words is "twenty-six million, one hundred seventy-two", and thus it is an aban number.