27224440 has 16 divisors (see below), whose sum is σ = 61255080. Its totient is φ = 10889760.

The previous prime is 27224437. The next prime is 27224447. The reversal of 27224440 is 4442272.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27224447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340266 + ... + 340345.

Almost surely, 2^27224440 is an apocalyptic number.

27224440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27224440 is an abundant number, since it is smaller than the sum of its proper divisors (34030640).

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

27224440 is a wasteful number, since it uses less digits than its factorization.

27224440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680622 (or 680618 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 27224440 is about 5217.7044761082. The cubic root of 27224440 is about 300.8289665311.

The spelling of 27224440 in words is "twenty-seven million, two hundred twenty-four thousand, four hundred forty".