27741890 has 32 divisors (see below), whose sum is σ = 55007424. Its totient is φ = 9989440.

The previous prime is 27741829. The next prime is 27741907. The reversal of 27741890 is 9814772.

It is a super-2 number, since 2×27741890² = 1539224921544200, which contains 22 as substring.

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 in 15 ways as a sum of consecutive naturals, for example, 10592 + ... + 12948.

It is an arithmetic number, because the mean of its divisors is an integer number (1718982).

Almost surely, 2^27741890 is an apocalyptic number.

27741890 is a deficient number, since it is larger than the sum of its proper divisors (27265534).

27741890 is a wasteful number, since it uses less digits than its factorization.

27741890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2482.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 27741890 is about 5267.0570530420. The cubic root of 27741890 is about 302.7229510904.

It can be divided in two parts, 2774 and 1890, that added together give a palindrome (4664).

The spelling of 27741890 in words is "twenty-seven million, seven hundred forty-one thousand, eight hundred ninety".