27240140 has 48 divisors (see below), whose sum is σ = 59409504. Its totient is φ = 10483200.

The previous prime is 27240139. The next prime is 27240151. The reversal of 27240140 is 4104272.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 96800 + ... + 97080.

It is an arithmetic number, because the mean of its divisors is an integer number (1237698).

Almost surely, 2^27240140 is an apocalyptic number.

27240140 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 27240140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29704752).

27240140 is an abundant number, since it is smaller than the sum of its proper divisors (32169364).

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

27240140 is a wasteful number, since it uses less digits than its factorization.

27240140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 27240140 is about 5219.2087522919. The cubic root of 27240140 is about 300.8867835411.

The spelling of 27240140 in words is "twenty-seven million, two hundred forty thousand, one hundred forty".