27440061 has 32 divisors (see below), whose sum is σ = 42145920. Its totient is φ = 15724800.

The previous prime is 27440059. The next prime is 27440069. The reversal of 27440061 is 16004472.

It is not a de Polignac number, because 27440061 - 2¹ = 27440059 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27440069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50451 + ... + 50991.

It is an arithmetic number, because the mean of its divisors is an integer number (1317060).

Almost surely, 2^27440061 is an apocalyptic number.

It is an amenable number.

27440061 is a deficient number, since it is larger than the sum of its proper divisors (14705859).

27440061 is a wasteful number, since it uses less digits than its factorization.

27440061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 27440061 is about 5238.3261639573. The cubic root of 27440061 is about 301.6210801086.

The spelling of 27440061 in words is "twenty-seven million, four hundred forty thousand, sixty-one".