44420019 has 24 divisors (see below), whose sum is σ = 69152400. Its totient is φ = 25288704.

The previous prime is 44420011. The next prime is 44420063. The reversal of 44420019 is 91002444.

It is not a de Polignac number, because 44420019 - 2³ = 44420011 is a prime.

It is a super-2 number, since 2×44420019² = 3946276175920722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44420011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65667 + ... + 66339.

It is an arithmetic number, because the mean of its divisors is an integer number (2881350).

Almost surely, 2^44420019 is an apocalyptic number.

44420019 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

44420019 is a deficient number, since it is larger than the sum of its proper divisors (24732381).

44420019 is a wasteful number, since it uses less digits than its factorization.

44420019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139 (or 1132 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 44420019 is about 6664.8345065725. The cubic root of 44420019 is about 354.1546214004.

The spelling of 44420019 in words is "forty-four million, four hundred twenty thousand, nineteen".