1242003044 has 6 divisors (see below), whose sum is σ = 2173505334. Its totient is φ = 621001520.

The previous prime is 1242003031. The next prime is 1242003079. The reversal of 1242003044 is 4403002421.

It can be written as a sum of positive squares in only one way, i.e., 1007300644 + 234702400 = 31738^2 + 15320^2 .

It is a super-2 number, since 2×1242003044² = 3085143122610531872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155250377 + ... + 155250384.

It is an arithmetic number, because the mean of its divisors is an integer number (362250889).

Almost surely, 2^1242003044 is an apocalyptic number.

It is an amenable number.

1242003044 is a deficient number, since it is larger than the sum of its proper divisors (931502290).

1242003044 is a wasteful number, since it uses less digits than its factorization.

1242003044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310500765 (or 310500763 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1242003044 is about 35242.0635604671. The cubic root of 1242003044 is about 1074.9152394681.

Adding to 1242003044 its reverse (4403002421), we get a palindrome (5645005465).

The spelling of 1242003044 in words is "one billion, two hundred forty-two million, three thousand, forty-four".