27740426 has 16 divisors (see below), whose sum is σ = 48129984. Its totient is φ = 11745024.

The previous prime is 27740423. The next prime is 27740431. The reversal of 27740426 is 62404772.

It is a super-2 number, since 2×27740426² = 1539062469322952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27740392 and 27740401.

It is not an unprimeable number, because it can be changed into a prime (27740423) 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 in 7 ways as a sum of consecutive naturals, for example, 10775 + ... + 13098.

It is an arithmetic number, because the mean of its divisors is an integer number (3008124).

Almost surely, 2^27740426 is an apocalyptic number.

27740426 is a deficient number, since it is larger than the sum of its proper divisors (20389558).

27740426 is a wasteful number, since it uses less digits than its factorization.

27740426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23965.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 27740426 is about 5266.9180741682. The cubic root of 27740426 is about 302.7176258801.

The spelling of 27740426 in words is "twenty-seven million, seven hundred forty thousand, four hundred twenty-six".