27057730 has 64 divisors (see below), whose sum is σ = 59185152. Its totient is φ = 8709120.

The previous prime is 27057721. The next prime is 27057733. The reversal of 27057730 is 3775072.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 27057692 and 27057701.

It is not an unprimeable number, because it can be changed into a prime (27057733) 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 31 ways as a sum of consecutive naturals, for example, 80122 + ... + 80458.

It is an arithmetic number, because the mean of its divisors is an integer number (924768).

Almost surely, 2^27057730 is an apocalyptic number.

27057730 is an abundant number, since it is smaller than the sum of its proper divisors (32127422).

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

27057730 is a wasteful number, since it uses less digits than its factorization.

27057730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419.

The product of its (nonzero) digits is 10290, while the sum is 31.

The square root of 27057730 is about 5201.7045283253. The cubic root of 27057730 is about 300.2136626063.

The spelling of 27057730 in words is "twenty-seven million, fifty-seven thousand, seven hundred thirty".