1043220042 has 48 divisors (see below), whose sum is σ = 2395149120. Its totient is φ = 327240000.

The previous prime is 1043220019. The next prime is 1043220047. The reversal of 1043220042 is 2400223401.

1043220042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 1043219997 and 1043220024.

It is not an unprimeable number, because it can be changed into a prime (1043220047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41542 + ... + 61742.

It is an arithmetic number, because the mean of its divisors is an integer number (49898940).

Almost surely, 2^1043220042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1043220042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1197574560).

1043220042 is an abundant number, since it is smaller than the sum of its proper divisors (1351929078).

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

1043220042 is a wasteful number, since it uses less digits than its factorization.

1043220042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20379 (or 20376 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1043220042 is about 32298.9170406687. The cubic root of 1043220042 is about 1014.2039725985.

Adding to 1043220042 its reverse (2400223401), we get a palindrome (3443443443).

The spelling of 1043220042 in words is "one billion, forty-three million, two hundred twenty thousand, forty-two".