27440120 has 16 divisors (see below), whose sum is σ = 61740360. Its totient is φ = 10976032.

The previous prime is 27440117. The next prime is 27440131. The reversal of 27440120 is 2104472.

It is a super-2 number, since 2×27440120² = 1505920371228800, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 27440092 and 27440101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342962 + ... + 343041.

Almost surely, 2^27440120 is an apocalyptic number.

27440120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27440120 is an abundant number, since it is smaller than the sum of its proper divisors (34300240).

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

27440120 is a wasteful number, since it uses less digits than its factorization.

27440120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686014 (or 686010 counting only the distinct ones).

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

The square root of 27440120 is about 5238.3317955242. The cubic root of 27440120 is about 301.6212962844.

Adding to 27440120 its reverse (2104472), we get a palindrome (29544592).

The spelling of 27440120 in words is "twenty-seven million, four hundred forty thousand, one hundred twenty".