26155420 has 12 divisors (see below), whose sum is σ = 54926424. Its totient is φ = 10462160.

The previous prime is 26155391. The next prime is 26155421. The reversal of 26155420 is 2455162.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26155421) 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 3 ways as a sum of consecutive naturals, for example, 653866 + ... + 653905.

It is an arithmetic number, because the mean of its divisors is an integer number (4577202).

Almost surely, 2^26155420 is an apocalyptic number.

26155420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26155420 is an abundant number, since it is smaller than the sum of its proper divisors (28771004).

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

26155420 is a wasteful number, since it uses less digits than its factorization.

26155420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307780 (or 1307778 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 26155420 is about 5114.2369909890. The cubic root of 26155420 is about 296.8387308600.

The spelling of 26155420 in words is "twenty-six million, one hundred fifty-five thousand, four hundred twenty".