27405230 has 16 divisors (see below), whose sum is σ = 50379840. Its totient is φ = 10728672.

The previous prime is 27405229. The next prime is 27405251. The reversal of 27405230 is 3250472.

27405230 = 2616² + 2617² + ... + 2619².

It is a junction number, because it is equal to n+sod(n) for n = 27405196 and 27405205.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 28685 + ... + 29624.

It is an arithmetic number, because the mean of its divisors is an integer number (3148740).

Almost surely, 2^27405230 is an apocalyptic number.

27405230 is a deficient number, since it is larger than the sum of its proper divisors (22974610).

27405230 is a wasteful number, since it uses less digits than its factorization.

27405230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58363.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 27405230 is about 5235.0004775549. Note that the first 3 decimals coincide. The cubic root of 27405230 is about 301.4934053179.

The spelling of 27405230 in words is "twenty-seven million, four hundred five thousand, two hundred thirty".