27290472 has 64 divisors (see below), whose sum is σ = 74995200. Its totient is φ = 8207040.

The previous prime is 27290467. The next prime is 27290521. The reversal of 27290472 is 27409272.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 15 ways as a sum of consecutive naturals, for example, 43779 + ... + 44397.

It is an arithmetic number, because the mean of its divisors is an integer number (1171800).

Almost surely, 2^27290472 is an apocalyptic number.

27290472 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27290472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37497600).

27290472 is an abundant number, since it is smaller than the sum of its proper divisors (47704728).

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

27290472 is a wasteful number, since it uses less digits than its factorization.

27290472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806 (or 802 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 27290472 is about 5224.0283307042. The cubic root of 27290472 is about 301.0719871383.

The spelling of 27290472 in words is "twenty-seven million, two hundred ninety thousand, four hundred seventy-two".