26880442 has 4 divisors (see below), whose sum is σ = 40320666. Its totient is φ = 13440220.

The previous prime is 26880437. The next prime is 26880479. The reversal of 26880442 is 24408862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24408862 = 2 ⋅12204431.

It can be written as a sum of positive squares in only one way, i.e., 20784481 + 6095961 = 4559^2 + 2469^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26880398 and 26880407.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6720109 + ... + 6720112.

Almost surely, 2^26880442 is an apocalyptic number.

26880442 is a deficient number, since it is larger than the sum of its proper divisors (13440224).

26880442 is a wasteful number, since it uses less digits than its factorization.

26880442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13440223.

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 26880442 is about 5184.6351848515. The cubic root of 26880442 is about 299.5565373853.

The spelling of 26880442 in words is "twenty-six million, eight hundred eighty thousand, four hundred forty-two".