27249740 has 48 divisors (see below), whose sum is σ = 66528000. Its totient is φ = 9181632.

The previous prime is 27249727. The next prime is 27249751. The reversal of 27249740 is 4794272.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 27249740.

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, 6611 + ... + 9909.

It is an arithmetic number, because the mean of its divisors is an integer number (1386000).

Almost surely, 2^27249740 is an apocalyptic number.

27249740 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 27249740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33264000).

27249740 is an abundant number, since it is smaller than the sum of its proper divisors (39278260).

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

27249740 is a wasteful number, since it uses less digits than its factorization.

27249740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3374 (or 3372 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 27249740 is about 5220.1283509125. The cubic root of 27249740 is about 300.9221256730.

The spelling of 27249740 in words is "twenty-seven million, two hundred forty-nine thousand, seven hundred forty".