26642121 has 8 divisors (see below), whose sum is σ = 38752224. Its totient is φ = 16146720.

The previous prime is 26642101. The next prime is 26642129. The reversal of 26642121 is 12124662.

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

It is not a de Polignac number, because 26642121 - 2¹¹ = 26640073 is a prime.

It is a super-2 number, since 2×26642121² = 1419605222757282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26642091 and 26642100.

It is not an unprimeable number, because it can be changed into a prime (26642129) 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, 403636 + ... + 403701.

It is an arithmetic number, because the mean of its divisors is an integer number (4844028).

Almost surely, 2^26642121 is an apocalyptic number.

It is an amenable number.

26642121 is a deficient number, since it is larger than the sum of its proper divisors (12110103).

26642121 is a wasteful number, since it uses less digits than its factorization.

26642121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807351.

The product of its digits is 1152, while the sum is 24.

The square root of 26642121 is about 5161.6006238375. The cubic root of 26642121 is about 298.6686224085.

Adding to 26642121 its reverse (12124662), we get a palindrome (38766783).

The spelling of 26642121 in words is "twenty-six million, six hundred forty-two thousand, one hundred twenty-one".