27940506 has 16 divisors (see below), whose sum is σ = 60961248. Its totient is φ = 8466800.

The previous prime is 27940499. The next prime is 27940547. The reversal of 27940506 is 60504972.

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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211605 + ... + 211736.

It is an arithmetic number, because the mean of its divisors is an integer number (3810078).

Almost surely, 2^27940506 is an apocalyptic number.

27940506 is an abundant number, since it is smaller than the sum of its proper divisors (33020742).

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

27940506 is a wasteful number, since it uses less digits than its factorization.

27940506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423357.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 27940506 is about 5285.8779781603. The cubic root of 27940506 is about 303.4436746527.

The spelling of 27940506 in words is "twenty-seven million, nine hundred forty thousand, five hundred six".