27432930 has 32 divisors (see below), whose sum is σ = 75245184. Its totient is φ = 6270336.

The previous prime is 27432907. The next prime is 27432931. The reversal of 27432930 is 3923472.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27432931) 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 15 ways as a sum of consecutive naturals, for example, 65107 + ... + 65526.

It is an arithmetic number, because the mean of its divisors is an integer number (2351412).

Almost surely, 2^27432930 is an apocalyptic number.

27432930 is an abundant number, since it is smaller than the sum of its proper divisors (47812254).

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

27432930 is a wasteful number, since it uses less digits than its factorization.

27432930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130650.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 27432930 is about 5237.6454633738. The cubic root of 27432930 is about 301.5949498670.

The spelling of 27432930 in words is "twenty-seven million, four hundred thirty-two thousand, nine hundred thirty".