1111044420 has 72 divisors (see below), whose sum is σ = 3375066240. Its totient is φ = 295848000.

The previous prime is 1111044413. The next prime is 1111044439. The reversal of 1111044420 is 244401111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1111044393 and 1111044402.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 131071 + ... + 139289.

It is an arithmetic number, because the mean of its divisors is an integer number (46875920).

Almost surely, 2^1111044420 is an apocalyptic number.

1111044420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111044420 is an abundant number, since it is smaller than the sum of its proper divisors (2264021820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1111044420 is a wasteful number, since it uses less digits than its factorization.

1111044420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8985 (or 8980 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1111044420 is about 33332.3329516552. The cubic root of 1111044420 is about 1035.7234457578.

Adding to 1111044420 its reverse (244401111), we get a palindrome (1355445531).

The spelling of 1111044420 in words is "one billion, one hundred eleven million, forty-four thousand, four hundred twenty".