26402047 has 8 divisors (see below), whose sum is σ = 30227616. Its totient is φ = 22589952.

The previous prime is 26402041. The next prime is 26402063. The reversal of 26402047 is 74020462.

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

It is not a de Polignac number, because 26402047 - 2¹⁹ = 25877759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26402041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1263 + ... + 7375.

It is an arithmetic number, because the mean of its divisors is an integer number (3778452).

Almost surely, 2^26402047 is an apocalyptic number.

26402047 is a deficient number, since it is larger than the sum of its proper divisors (3825569).

26402047 is an equidigital number, since it uses as much as digits as its factorization.

26402047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6737.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 26402047 is about 5138.2922260222. The cubic root of 26402047 is about 297.7688063135.

The spelling of 26402047 in words is "twenty-six million, four hundred two thousand, forty-seven".