440221141 has 16 divisors (see below), whose sum is σ = 457814448. Its totient is φ = 423014400.

The previous prime is 440221139. The next prime is 440221147. The reversal of 440221141 is 141122044.

It can be written as a sum of positive squares in 8 ways, for example, as 226622916 + 213598225 = 15054^2 + 14615^2 .

It is a cyclic number.

It is not a de Polignac number, because 440221141 - 2¹ = 440221139 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 (440221147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1016461 + ... + 1016893.

It is an arithmetic number, because the mean of its divisors is an integer number (28613403).

Almost surely, 2^440221141 is an apocalyptic number.

440221141 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

440221141 is a deficient number, since it is larger than the sum of its proper divisors (17593307).

440221141 is a wasteful number, since it uses less digits than its factorization.

440221141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 440221141 is about 20981.4475430081. The cubic root of 440221141 is about 760.7178933428.

Adding to 440221141 its reverse (141122044), we get a palindrome (581343185).

The spelling of 440221141 in words is "four hundred forty million, two hundred twenty-one thousand, one hundred forty-one".