26155398 has 8 divisors (see below), whose sum is σ = 52310808. Its totient is φ = 8718464.

The previous prime is 26155391. The next prime is 26155421. The reversal of 26155398 is 89355162.

It is a sphenic number, since it is the product of 3 distinct primes.

26155398 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26155391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2179611 + ... + 2179622.

It is an arithmetic number, because the mean of its divisors is an integer number (6538851).

Almost surely, 2^26155398 is an apocalyptic number.

26155398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

26155398 is a wasteful number, since it uses less digits than its factorization.

26155398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4359238.

The product of its digits is 64800, while the sum is 39.

The square root of 26155398 is about 5114.2348401300. The cubic root of 26155398 is about 296.8386476338.

The spelling of 26155398 in words is "twenty-six million, one hundred fifty-five thousand, three hundred ninety-eight".