26630121 has 16 divisors (see below), whose sum is σ = 41677184. Its totient is φ = 14805504.

The previous prime is 26630119. The next prime is 26630129. The reversal of 26630121 is 12103662.

It is a happy number.

It is not a de Polignac number, because 26630121 - 2¹ = 26630119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26630129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16360 + ... + 17913.

It is an arithmetic number, because the mean of its divisors is an integer number (2604824).

Almost surely, 2^26630121 is an apocalyptic number.

26630121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

26630121 is a deficient number, since it is larger than the sum of its proper divisors (15047063).

26630121 is a wasteful number, since it uses less digits than its factorization.

26630121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34320.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 26630121 is about 5160.4380628005. The cubic root of 26630121 is about 298.6237741060.

Adding to 26630121 its reverse (12103662), we get a palindrome (38733783).

The spelling of 26630121 in words is "twenty-six million, six hundred thirty thousand, one hundred twenty-one".