27638130 has 32 divisors (see below), whose sum is σ = 71434944. Its totient is φ = 6803136.

The previous prime is 27638129. The next prime is 27638161. The reversal of 27638130 is 3183672.

It is a super-3 number, since 3×27638130³ (a number of 23 digits) contains 333 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35044 + ... + 35823.

It is an arithmetic number, because the mean of its divisors is an integer number (2232342).

Almost surely, 2^27638130 is an apocalyptic number.

27638130 is an abundant number, since it is smaller than the sum of its proper divisors (43796814).

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

27638130 is a wasteful number, since it uses less digits than its factorization.

27638130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70890.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 27638130 is about 5257.1979228483. The cubic root of 27638130 is about 302.3450655719.

The spelling of 27638130 in words is "twenty-seven million, six hundred thirty-eight thousand, one hundred thirty".