26420387 has 8 divisors (see below), whose sum is σ = 30370656. Its totient is φ = 22514112.

The previous prime is 26420369. The next prime is 26420411. The reversal of 26420387 is 78302462.

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

It is a cyclic number.

It is not a de Polignac number, because 26420387 - 2⁶ = 26420323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26420327) by changing a digit.

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, 9698 + ... + 12119.

It is an arithmetic number, because the mean of its divisors is an integer number (3796332).

Almost surely, 2^26420387 is an apocalyptic number.

26420387 is a deficient number, since it is larger than the sum of its proper divisors (3950269).

26420387 is a wasteful number, since it uses less digits than its factorization.

26420387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21997.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 26420387 is about 5140.0765558501. The cubic root of 26420387 is about 297.8377380381.

The spelling of 26420387 in words is "twenty-six million, four hundred twenty thousand, three hundred eighty-seven".