1141043420 has 48 divisors (see below), whose sum is σ = 2624995296. Its totient is φ = 413184000.

The previous prime is 1141043357. The next prime is 1141043437. The reversal of 1141043420 is 243401411.

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

It is a junction number, because it is equal to n+sod(n) for n = 1141043392 and 1141043401.

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, 42260 + ... + 63780.

It is an arithmetic number, because the mean of its divisors is an integer number (54687402).

Almost surely, 2^1141043420 is an apocalyptic number.

1141043420 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 1141043420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1312497648).

1141043420 is an abundant number, since it is smaller than the sum of its proper divisors (1483951876).

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

1141043420 is a wasteful number, since it uses less digits than its factorization.

1141043420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21782 (or 21780 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1141043420 is about 33779.3342148717. The cubic root of 1141043420 is about 1044.9625437762.

Adding to 1141043420 its reverse (243401411), we get a palindrome (1384444831).

The spelling of 1141043420 in words is "one billion, one hundred forty-one million, forty-three thousand, four hundred twenty".