27428330 has 16 divisors (see below), whose sum is σ = 49434624. Its totient is φ = 10957200.

The previous prime is 27428299. The next prime is 27428339. The reversal of 27428330 is 3382472.

It is a junction number, because it is equal to n+sod(n) for n = 27428293 and 27428302.

It is not an unprimeable number, because it can be changed into a prime (27428339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10319 + ... + 12701.

It is an arithmetic number, because the mean of its divisors is an integer number (3089664).

Almost surely, 2^27428330 is an apocalyptic number.

27428330 is a deficient number, since it is larger than the sum of its proper divisors (22006294).

27428330 is a wasteful number, since it uses less digits than its factorization.

27428330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3541.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 27428330 is about 5237.2063163484. The cubic root of 27428330 is about 301.5780916080.

The spelling of 27428330 in words is "twenty-seven million, four hundred twenty-eight thousand, three hundred thirty".