1113220460 has 48 divisors (see below), whose sum is σ = 2561836032. Its totient is φ = 402974400.

The previous prime is 1113220441. The next prime is 1113220481. The reversal of 1113220460 is 640223111.

It is a super-2 number, since 2×1113220460² = 2478519585125223200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 37715 + ... + 60405.

It is an arithmetic number, because the mean of its divisors is an integer number (53371584).

Almost surely, 2^1113220460 is an apocalyptic number.

1113220460 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 1113220460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1280918016).

1113220460 is an abundant number, since it is smaller than the sum of its proper divisors (1448615572).

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

1113220460 is a wasteful number, since it uses less digits than its factorization.

1113220460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22934 (or 22932 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1113220460 is about 33364.9585643381. The cubic root of 1113220460 is about 1036.3991780764.

Adding to 1113220460 its reverse (640223111), we get a palindrome (1753443571).

The spelling of 1113220460 in words is "one billion, one hundred thirteen million, two hundred twenty thousand, four hundred sixty".