27730142 has 8 divisors (see below), whose sum is σ = 45376632. Its totient is φ = 12604600.

The previous prime is 27730133. The next prime is 27730147. The reversal of 27730142 is 24103772.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27730147) 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, 630209 + ... + 630252.

It is an arithmetic number, because the mean of its divisors is an integer number (5672079).

Almost surely, 2^27730142 is an apocalyptic number.

27730142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

27730142 is a deficient number, since it is larger than the sum of its proper divisors (17646490).

27730142 is a wasteful number, since it uses less digits than its factorization.

27730142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260474.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 27730142 is about 5265.9417011585. The cubic root of 27730142 is about 302.6802131784.

It can be divided in two parts, 27730 and 142, that added together give a palindrome (27872).

The spelling of 27730142 in words is "twenty-seven million, seven hundred thirty thousand, one hundred forty-two".