27021426 has 8 divisors (see below), whose sum is σ = 54042864. Its totient is φ = 9007140.

The previous prime is 27021391. The next prime is 27021431. The reversal of 27021426 is 62412072.

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

27021426 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 27021396 and 27021405.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 2251780 + ... + 2251791.

It is an arithmetic number, because the mean of its divisors is an integer number (6755358).

Almost surely, 2^27021426 is an apocalyptic number.

27021426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27021426 is a wasteful number, since it uses less digits than its factorization.

27021426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4503576.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 27021426 is about 5198.2137316582. The cubic root of 27021426 is about 300.0793345738.

Adding to 27021426 its reverse (62412072), we get a palindrome (89433498).

The spelling of 27021426 in words is "twenty-seven million, twenty-one thousand, four hundred twenty-six".