27726642 has 24 divisors (see below), whose sum is σ = 60297744. Its totient is φ = 9207864.

The previous prime is 27726631. The next prime is 27726649. The reversal of 27726642 is 24662772.

27726642 is a `hidden beast` number, since 2 + 7 + 7 + 2 + 6 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 27726597 and 27726606.

It is not an unprimeable number, because it can be changed into a prime (27726649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2373 + ... + 7815.

It is an arithmetic number, because the mean of its divisors is an integer number (2512406).

Almost surely, 2^27726642 is an apocalyptic number.

27726642 is an abundant number, since it is smaller than the sum of its proper divisors (32571102).

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

27726642 is a wasteful number, since it uses less digits than its factorization.

27726642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5734 (or 5731 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 27726642 is about 5265.6093664456. The cubic root of 27726642 is about 302.6674782355.

The spelling of 27726642 in words is "twenty-seven million, seven hundred twenty-six thousand, six hundred forty-two".