40221383 has 4 divisors (see below), whose sum is σ = 41156808. Its totient is φ = 39285960.

The previous prime is 40221367. The next prime is 40221403. The reversal of 40221383 is 38312204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40221383 - 2⁴ = 40221367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221343) 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, 467648 + ... + 467733.

It is an arithmetic number, because the mean of its divisors is an integer number (10289202).

Almost surely, 2^40221383 is an apocalyptic number.

40221383 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

40221383 is a deficient number, since it is larger than the sum of its proper divisors (935425).

40221383 is an equidigital number, since it uses as much as digits as its factorization.

40221383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935424.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 40221383 is about 6342.0330336573. The cubic root of 40221383 is about 342.6249615948.

Adding to 40221383 its reverse (38312204), we get a palindrome (78533587).

It can be divided in two parts, 40221 and 383, that added together give a palindrome (40604).

The spelling of 40221383 in words is "forty million, two hundred twenty-one thousand, three hundred eighty-three".