1042643442 has 8 divisors (see below), whose sum is σ = 2085286896. Its totient is φ = 347547812.

The previous prime is 1042643369. The next prime is 1042643447. The reversal of 1042643442 is 2443462401.

It is a sphenic number, since it is the product of 3 distinct primes.

1042643442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1042643447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86886948 + ... + 86886959.

It is an arithmetic number, because the mean of its divisors is an integer number (260660862).

Almost surely, 2^1042643442 is an apocalyptic number.

1042643442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1042643442 is a wasteful number, since it uses less digits than its factorization.

1042643442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173773912.

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 1042643442 is about 32289.9898110854. The cubic root of 1042643442 is about 1014.0170840035.

The spelling of 1042643442 in words is "one billion, forty-two million, six hundred forty-three thousand, four hundred forty-two".