27540426 has 8 divisors (see below), whose sum is σ = 55080864. Its totient is φ = 9180140.

The previous prime is 27540421. The next prime is 27540467. The reversal of 27540426 is 62404572.

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

27540426 is an admirable number.

It is a super-2 number, since 2×27540426² = 1516950128522952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27540393 and 27540402.

It is not an unprimeable number, because it can be changed into a prime (27540421) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 2295030 + ... + 2295041.

It is an arithmetic number, because the mean of its divisors is an integer number (6885108).

Almost surely, 2^27540426 is an apocalyptic number.

27540426 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.

27540426 is a wasteful number, since it uses less digits than its factorization.

27540426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4590076.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 27540426 is about 5247.8972932023. The cubic root of 27540426 is about 301.9883699452.

Adding to 27540426 its reverse (62404572), we get a palindrome (89944998).

It can be divided in two parts, 27540 and 426, that added together give a triangular number (27966 = T₂₃₆).

The spelling of 27540426 in words is "twenty-seven million, five hundred forty thousand, four hundred twenty-six".