1111442620 has 48 divisors (see below), whose sum is σ = 2467614240. Its totient is φ = 419337216.

The previous prime is 1111442617. The next prime is 1111442641. The reversal of 1111442620 is 262441111.

It is a junction number, because it is equal to n+sod(n) for n = 1111442591 and 1111442600.

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, 82264 + ... + 94816.

It is an arithmetic number, because the mean of its divisors is an integer number (51408630).

Almost surely, 2^1111442620 is an apocalyptic number.

1111442620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111442620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1233807120).

1111442620 is an abundant number, since it is smaller than the sum of its proper divisors (1356171620).

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

1111442620 is a wasteful number, since it uses less digits than its factorization.

1111442620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12814 (or 12812 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1111442620 is about 33338.3055958158. The cubic root of 1111442620 is about 1035.8471659282.

Adding to 1111442620 its reverse (262441111), we get a palindrome (1373883731).

The spelling of 1111442620 in words is "one billion, one hundred eleven million, four hundred forty-two thousand, six hundred twenty".