27484740 has 144 divisors (see below), whose sum is σ = 88216128. Its totient is φ = 6918912.

The previous prime is 27484679. The next prime is 27484741. The reversal of 27484740 is 4748472.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 27484695 and 27484704.

It is not an unprimeable number, because it can be changed into a prime (27484741) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 410187 + ... + 410253.

It is an arithmetic number, because the mean of its divisors is an integer number (612612).

Almost surely, 2^27484740 is an apocalyptic number.

27484740 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 27484740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44108064).

27484740 is an abundant number, since it is smaller than the sum of its proper divisors (60731388).

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

27484740 is a wasteful number, since it uses less digits than its factorization.

27484740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The square root of 27484740 is about 5242.5890550376. The cubic root of 27484740 is about 301.7846951570.

It can be divided in two parts, 27484 and 740, that added together give a square (28224 = 168²).

The spelling of 27484740 in words is "twenty-seven million, four hundred eighty-four thousand, seven hundred forty".