27493470 has 24 divisors (see below), whose sum is σ = 71483256. Its totient is φ = 7331568.

The previous prime is 27493463. The next prime is 27493489. The reversal of 27493470 is 7439472.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152652 + ... + 152831.

It is an arithmetic number, because the mean of its divisors is an integer number (2978469).

Almost surely, 2^27493470 is an apocalyptic number.

27493470 is an abundant number, since it is smaller than the sum of its proper divisors (43989786).

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

27493470 is a wasteful number, since it uses less digits than its factorization.

27493470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305496 (or 305493 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 27493470 is about 5243.4215928151. The cubic root of 27493470 is about 301.8166438128.

The spelling of 27493470 in words is "twenty-seven million, four hundred ninety-three thousand, four hundred seventy".