1242828842 has 8 divisors (see below), whose sum is σ = 1864404000. Its totient is φ = 621360844.

The previous prime is 1242828827. The next prime is 1242828887. The reversal of 1242828842 is 2488282421.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1242828842.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15659 + ... + 52257.

It is an arithmetic number, because the mean of its divisors is an integer number (233050500).

Almost surely, 2^1242828842 is an apocalyptic number.

1242828842 is a deficient number, since it is larger than the sum of its proper divisors (621575158).

1242828842 is a wasteful number, since it uses less digits than its factorization.

1242828842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53580.

The product of its digits is 131072, while the sum is 41.

The square root of 1242828842 is about 35253.7776982836. Note that the first 3 decimals coincide. The cubic root of 1242828842 is about 1075.1534209011.

The spelling of 1242828842 in words is "one billion, two hundred forty-two million, eight hundred twenty-eight thousand, eight hundred forty-two".