4400121041 has 4 divisors (see below), whose sum is σ = 4424431284. Its totient is φ = 4375810800.

The previous prime is 4400121031. The next prime is 4400121097. The reversal of 4400121041 is 1401210044.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24960016 + 4375161025 = 4996^2 + 66145^2 .

It is a cyclic number.

It is not a de Polignac number, because 4400121041 - 2²² = 4395926737 is a prime.

It is a super-2 number, since 2×4400121041² = 38722130350901847362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4400121031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12154850 + ... + 12155211.

It is an arithmetic number, because the mean of its divisors is an integer number (1106107821).

Almost surely, 2^4400121041 is an apocalyptic number.

It is an amenable number.

4400121041 is a deficient number, since it is larger than the sum of its proper divisors (24310243).

4400121041 is a wasteful number, since it uses less digits than its factorization.

4400121041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24310242.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 4400121041 is about 66333.4081816998. The cubic root of 4400121041 is about 1638.6575670432.

Adding to 4400121041 its reverse (1401210044), we get a palindrome (5801331085).

The spelling of 4400121041 in words is "four billion, four hundred million, one hundred twenty-one thousand, forty-one".