26630261 has 8 divisors (see below), whose sum is σ = 30522240. Its totient is φ = 22760208.

The previous prime is 26630257. The next prime is 26630293. The reversal of 26630261 is 16203662.

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 26630261 - 2² = 26630257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26630261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26630561) 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 7 ways as a sum of consecutive naturals, for example, 2786 + ... + 7811.

It is an arithmetic number, because the mean of its divisors is an integer number (3815280).

Almost surely, 2^26630261 is an apocalyptic number.

It is an amenable number.

26630261 is a deficient number, since it is larger than the sum of its proper divisors (3891979).

26630261 is a wasteful number, since it uses less digits than its factorization.

26630261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10963.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 26630261 is about 5160.4516275225. The cubic root of 26630261 is about 298.6242974139.

The spelling of 26630261 in words is "twenty-six million, six hundred thirty thousand, two hundred sixty-one".