1105252420 has 48 divisors (see below), whose sum is σ = 2446839360. Its totient is φ = 418207104.

The previous prime is 1105252411. The next prime is 1105252441. The reversal of 1105252420 is 242525011.

It is a junction number, because it is equal to n+sod(n) for n = 1105252391 and 1105252400.

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, 312502 + ... + 316018.

It is an arithmetic number, because the mean of its divisors is an integer number (50975820).

Almost surely, 2^1105252420 is an apocalyptic number.

1105252420 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 1105252420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1223419680).

1105252420 is an abundant number, since it is smaller than the sum of its proper divisors (1341586940).

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

1105252420 is a wasteful number, since it uses less digits than its factorization.

1105252420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4372 (or 4370 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1105252420 is about 33245.3368158604. The cubic root of 1105252420 is about 1033.9205280954.

Adding to 1105252420 its reverse (242525011), we get a palindrome (1347777431).

The spelling of 1105252420 in words is "one billion, one hundred five million, two hundred fifty-two thousand, four hundred twenty".