1243362042 has 64 divisors (see below), whose sum is σ = 3003557760. Its totient is φ = 378974592.

The previous prime is 1243361993. The next prime is 1243362067. The reversal of 1243362042 is 2402633421.

1243362042 is a `hidden beast` number, since 1 + 2 + 4 + 33 + 620 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1243361997 and 1243362015.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66838 + ... + 83390.

It is an arithmetic number, because the mean of its divisors is an integer number (46930590).

Almost surely, 2^1243362042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1243362042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1501778880).

1243362042 is an abundant number, since it is smaller than the sum of its proper divisors (1760195718).

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

1243362042 is a wasteful number, since it uses less digits than its factorization.

1243362042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16684 (or 16678 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 1243362042 is about 35261.3391974837. The cubic root of 1243362042 is about 1075.3071534780.

Adding to 1243362042 its reverse (2402633421), we get a palindrome (3645995463).

The spelling of 1243362042 in words is "one billion, two hundred forty-three million, three hundred sixty-two thousand, forty-two".