4419981 has 16 divisors (see below), whose sum is σ = 6604800. Its totient is φ = 2921184.

The previous prime is 4419973. The next prime is 4419991. The reversal of 4419981 is 1899144.

It is not a de Polignac number, because 4419981 - 2³ = 4419973 is a prime.

It is a super-2 number, since 2×4419981² = 39072464080722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4419901) 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 15 ways as a sum of consecutive naturals, for example, 2785 + ... + 4073.

It is an arithmetic number, because the mean of its divisors is an integer number (412800).

Almost surely, 2^4419981 is an apocalyptic number.

It is an amenable number.

4419981 is a deficient number, since it is larger than the sum of its proper divisors (2184819).

4419981 is a wasteful number, since it uses less digits than its factorization.

4419981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425 (or 1419 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 4419981 is about 2102.3750854688. The cubic root of 4419981 is about 164.1119229061. Note that the first 3 decimals are identical.

The spelling of 4419981 in words is "four million, four hundred nineteen thousand, nine hundred eighty-one".