27472740 has 48 divisors (see below), whose sum is σ = 78019200. Its totient is φ = 7221760.

The previous prime is 27472721. The next prime is 27472763. The reversal of 27472740 is 4727472.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1036 + ... + 7484.

It is an arithmetic number, because the mean of its divisors is an integer number (1625400).

Almost surely, 2^27472740 is an apocalyptic number.

27472740 is a gapful number since it is divisible by the number (20) 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 27472740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39009600).

27472740 is an abundant number, since it is smaller than the sum of its proper divisors (50546460).

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

27472740 is a wasteful number, since it uses less digits than its factorization.

27472740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6532 (or 6530 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 33.

The square root of 27472740 is about 5241.4444573991. Note that the first 4 decimals coincide. The cubic root of 27472740 is about 301.7407684360.

The spelling of 27472740 in words is "twenty-seven million, four hundred seventy-two thousand, seven hundred forty".