26198072 has 32 divisors (see below), whose sum is σ = 51240720. Its totient is φ = 12545280.

The previous prime is 26198063. The next prime is 26198083. The reversal of 26198072 is 27089162.

It is a happy number.

It is a Cunningham number, because it is equal to 297³-1.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

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, 19172 + ... + 20492.

Almost surely, 2^26198072 is an apocalyptic number.

It is an amenable number.

26198072 is a deficient number, since it is larger than the sum of its proper divisors (25042648).

26198072 is a wasteful number, since it uses less digits than its factorization.

26198072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431 (or 1427 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 26198072 is about 5118.4052203787. The cubic root of 26198072 is about 296.9999962211. Note that the first 5 decimals are identical.

The spelling of 26198072 in words is "twenty-six million, one hundred ninety-eight thousand, seventy-two".