1020043242 has 48 divisors (see below), whose sum is σ = 2257276320. Its totient is φ = 332820576.

The previous prime is 1020043229. The next prime is 1020043267. The reversal of 1020043242 is 2423400201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 193984 + ... + 199172.

It is an arithmetic number, because the mean of its divisors is an integer number (47026590).

Almost surely, 2^1020043242 is an apocalyptic number.

1020043242 is an abundant number, since it is smaller than the sum of its proper divisors (1237233078).

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

1020043242 is a wasteful number, since it uses less digits than its factorization.

1020043242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5427 (or 5424 counting only the distinct ones).

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

The square root of 1020043242 is about 31938.1158179377. The cubic root of 1020043242 is about 1006.6369343196.

Adding to 1020043242 its reverse (2423400201), we get a palindrome (3443443443).

The spelling of 1020043242 in words is "one billion, twenty million, forty-three thousand, two hundred forty-two".