27479142 has 32 divisors (see below), whose sum is σ = 61810560. Its totient is φ = 9047880.

The previous prime is 27479141. The next prime is 27479159. The reversal of 27479142 is 24197472.

It is a junction number, because it is equal to n+sod(n) for n = 27479097 and 27479106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27479141) 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, 1417 + ... + 7547.

It is an arithmetic number, because the mean of its divisors is an integer number (1931580).

Almost surely, 2^27479142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27479142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30905280).

27479142 is an abundant number, since it is smaller than the sum of its proper divisors (34331418).

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

27479142 is a wasteful number, since it uses less digits than its factorization.

27479142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6225 (or 6219 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 27479142 is about 5242.0551313392. The cubic root of 27479142 is about 301.7642049330.

The spelling of 27479142 in words is "twenty-seven million, four hundred seventy-nine thousand, one hundred forty-two".