4400400019 has 4 divisors (see below), whose sum is σ = 4632000040. Its totient is φ = 4168800000.

The previous prime is 4400400001. The next prime is 4400400031. The reversal of 4400400019 is 9100040044.

It is a happy number.

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 4400400019 - 2¹⁷ = 4400268947 is a prime.

It is a super-2 number, since 2×4400400019² = 38727040654430400722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4400400919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115799982 + ... + 115800019.

It is an arithmetic number, because the mean of its divisors is an integer number (1158000010).

Almost surely, 2^4400400019 is an apocalyptic number.

4400400019 is a deficient number, since it is larger than the sum of its proper divisors (231600021).

4400400019 is a wasteful number, since it uses less digits than its factorization.

4400400019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231600020.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 4400400019 is about 66335.5109952430. The cubic root of 4400400019 is about 1638.6921978897.

The spelling of 4400400019 in words is "four billion, four hundred million, four hundred thousand, nineteen".