26642145 has 16 divisors (see below), whose sum is σ = 45135360. Its totient is φ = 13373184.

The previous prime is 26642141. The next prime is 26642149. The reversal of 26642145 is 54124662.

It is an interprime number because it is at equal distance from previous prime (26642141) and next prime (26642149).

It is not a de Polignac number, because 26642145 - 2² = 26642141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26642141) 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, 51985 + ... + 52494.

It is an arithmetic number, because the mean of its divisors is an integer number (2820960).

Almost surely, 2^26642145 is an apocalyptic number.

It is an amenable number.

26642145 is a deficient number, since it is larger than the sum of its proper divisors (18493215).

26642145 is a wasteful number, since it uses less digits than its factorization.

26642145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104504.

The product of its digits is 11520, while the sum is 30.

The square root of 26642145 is about 5161.6029486972. The cubic root of 26642145 is about 298.6687120916.

The spelling of 26642145 in words is "twenty-six million, six hundred forty-two thousand, one hundred forty-five".