27428370 has 16 divisors (see below), whose sum is σ = 65828160. Its totient is φ = 7314224.

The previous prime is 27428353. The next prime is 27428383. The reversal of 27428370 is 7382472.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457110 + ... + 457169.

It is an arithmetic number, because the mean of its divisors is an integer number (4114260).

Almost surely, 2^27428370 is an apocalyptic number.

27428370 is an abundant number, since it is smaller than the sum of its proper divisors (38399790).

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

27428370 is a wasteful number, since it uses less digits than its factorization.

27428370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914289.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 27428370 is about 5237.2101351769. The cubic root of 27428370 is about 301.5782382097.

The spelling of 27428370 in words is "twenty-seven million, four hundred twenty-eight thousand, three hundred seventy".