4400019 has 12 divisors (see below), whose sum is σ = 6844656. Its totient is φ = 2707632.

The previous prime is 4399987. The next prime is 4400021. The reversal of 4400019 is 9100044.

It is not a de Polignac number, because 4400019 - 2⁵ = 4399987 is a prime.

It is a super-2 number, since 2×4400019² = 38720334400722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4399974 and 4400010.

It is not an unprimeable number, because it can be changed into a prime (4400069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18687 + ... + 18920.

It is an arithmetic number, because the mean of its divisors is an integer number (570388).

Almost surely, 2^4400019 is an apocalyptic number.

4400019 is a deficient number, since it is larger than the sum of its proper divisors (2444637).

4400019 is a wasteful number, since it uses less digits than its factorization.

4400019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37626 (or 37623 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 4400019 is about 2097.6222252827. The cubic root of 4400019 is about 163.8644899850.

The spelling of 4400019 in words is "four million, four hundred thousand, nineteen".