27129190 has 32 divisors (see below), whose sum is σ = 55593216. Its totient is φ = 9435360.

The previous prime is 27129187. The next prime is 27129197. The reversal of 27129190 is 9192172.

It is a super-2 number, since 2×27129190² = 1471985900112200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27129197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2832 + ... + 7891.

It is an arithmetic number, because the mean of its divisors is an integer number (1737288).

Almost surely, 2^27129190 is an apocalyptic number.

27129190 is an abundant number, since it is smaller than the sum of its proper divisors (28464026).

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

27129190 is a wasteful number, since it uses less digits than its factorization.

27129190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10764.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 27129190 is about 5208.5689013394. The cubic root of 27129190 is about 300.4777203552.

The spelling of 27129190 in words is "twenty-seven million, one hundred twenty-nine thousand, one hundred ninety".