27390530 has 8 divisors (see below), whose sum is σ = 49302972. Its totient is φ = 10956208.

The previous prime is 27390523. The next prime is 27390541. The reversal of 27390530 is 3509372.

It can be written as a sum of positive squares in 2 ways, for example, as 27384289 + 6241 = 5233^2 + 79^2 .

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

It is a super-2 number, since 2×27390530² = 1500482267361800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27390493 and 27390502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1369517 + ... + 1369536.

Almost surely, 2^27390530 is an apocalyptic number.

27390530 is a deficient number, since it is larger than the sum of its proper divisors (21912442).

27390530 is a wasteful number, since it uses less digits than its factorization.

27390530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2739060.

The product of its (nonzero) digits is 5670, while the sum is 29.

The square root of 27390530 is about 5233.5962778953. The cubic root of 27390530 is about 301.4394892622.

The spelling of 27390530 in words is "twenty-seven million, three hundred ninety thousand, five hundred thirty".