26880142 has 4 divisors (see below), whose sum is σ = 40320216. Its totient is φ = 13440070.

The previous prime is 26880109. The next prime is 26880143. The reversal of 26880142 is 24108862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24108862 = 2 ⋅12054431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26880143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6720034 + ... + 6720037.

It is an arithmetic number, because the mean of its divisors is an integer number (10080054).

Almost surely, 2^26880142 is an apocalyptic number.

26880142 is a deficient number, since it is larger than the sum of its proper divisors (13440074).

26880142 is a wasteful number, since it uses less digits than its factorization.

26880142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13440073.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 26880142 is about 5184.6062531305. The cubic root of 26880142 is about 299.5554229778. Note that the first 3 decimals are identical.

The spelling of 26880142 in words is "twenty-six million, eight hundred eighty thousand, one hundred forty-two".