44444444 has 48 divisors (see below), whose sum is σ = 87496416. Its totient is φ = 19584000.

The previous prime is 44444399. The next prime is 44444453.

44444444 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×44444444³ (a number of 24 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

44444444 is a modest number, since divided by 44444 gives 444 as remainder.

44444444 is a nontrivial repdigit in base 10.

It is a plaindrome in base 10.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 44444444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324344 + ... + 324480.

It is an arithmetic number, because the mean of its divisors is an integer number (1822842).

Almost surely, 2^44444444 is an apocalyptic number.

44444444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

44444444 is a deficient number, since it is larger than the sum of its proper divisors (43051972).

44444444 is a wasteful number, since it uses less digits than its factorization.

44444444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 324 counting only the distinct ones).

The product of its digits is 65536, while the sum is 32.

The square root of 44444444 is about 6666.6666333333. Note that the first 4 decimals coincide. The cubic root of 44444444 is about 354.2195218801.

It can be divided in two parts, 4444 and 4444, that added together give a palindrome (8888).

The spelling of 44444444 in words is "forty-four million, four hundred forty-four thousand, four hundred forty-four".