40227705 has 32 divisors (see below), whose sum is σ = 81734400. Its totient is φ = 18389376.

The previous prime is 40227703. The next prime is 40227709. The reversal of 40227705 is 50772204.

It is not a de Polignac number, because 40227705 - 2¹ = 40227703 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40227703) 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, 20340 + ... + 22229.

It is an arithmetic number, because the mean of its divisors is an integer number (2554200).

Almost surely, 2^40227705 is an apocalyptic number.

40227705 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40227705 is an abundant number, since it is smaller than the sum of its proper divisors (41506695).

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

40227705 is a wasteful number, since it uses less digits than its factorization.

40227705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42590 (or 42584 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 40227705 is about 6342.5314346876. The cubic root of 40227705 is about 342.6429119267.

Adding to 40227705 its reverse (50772204), we get a palindrome (90999909).

The spelling of 40227705 in words is "forty million, two hundred twenty-seven thousand, seven hundred five".