26420285 has 8 divisors (see below), whose sum is σ = 31796280. Its totient is φ = 21074944.

The previous prime is 26420281. The next prime is 26420291. The reversal of 26420285 is 58202462.

It can be written as a sum of positive squares in 4 ways, for example, as 267289 + 26152996 = 517^2 + 5114^2 .

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 26420285 - 2² = 26420281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26420281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5720 + ... + 9249.

It is an arithmetic number, because the mean of its divisors is an integer number (3974535).

Almost surely, 2^26420285 is an apocalyptic number.

It is an amenable number.

26420285 is a deficient number, since it is larger than the sum of its proper divisors (5375995).

26420285 is a wasteful number, since it uses less digits than its factorization.

26420285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15327.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 26420285 is about 5140.0666338093. The cubic root of 26420285 is about 297.8373547546.

The spelling of 26420285 in words is "twenty-six million, four hundred twenty thousand, two hundred eighty-five".