1100424420 has 192 divisors, whose sum is σ = 3661217280. Its totient is φ = 273715200.

The previous prime is 1100424383. The next prime is 1100424421. The reversal of 1100424420 is 244240011.

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 = 1100424393 and 1100424402.

It is not an unprimeable number, because it can be changed into a prime (1100424421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 508140 + ... + 510300.

It is an arithmetic number, because the mean of its divisors is an integer number (19068840).

Almost surely, 2^1100424420 is an apocalyptic number.

1100424420 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 1100424420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1830608640).

1100424420 is an abundant number, since it is smaller than the sum of its proper divisors (2560792860).

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

1100424420 is a wasteful number, since it uses less digits than its factorization.

1100424420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243 (or 2235 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1100424420 is about 33172.6456587352. The cubic root of 1100424420 is about 1032.4128621203.

Adding to 1100424420 its reverse (244240011), we get a palindrome (1344664431).

The spelling of 1100424420 in words is "one billion, one hundred million, four hundred twenty-four thousand, four hundred twenty".