1242244004 has 6 divisors (see below), whose sum is σ = 2173927014. Its totient is φ = 621122000.

The previous prime is 1242243991. The next prime is 1242244013. The reversal of 1242244004 is 4004422421.

It can be written as a sum of positive squares in only one way, i.e., 1210344100 + 31899904 = 34790^2 + 5648^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155280497 + ... + 155280504.

It is an arithmetic number, because the mean of its divisors is an integer number (362321169).

Almost surely, 2^1242244004 is an apocalyptic number.

It is an amenable number.

1242244004 is a deficient number, since it is larger than the sum of its proper divisors (931683010).

1242244004 is a wasteful number, since it uses less digits than its factorization.

1242244004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310561005 (or 310561003 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 1242244004 is about 35245.4820367093. The cubic root of 1242244004 is about 1074.9847494501.

Adding to 1242244004 its reverse (4004422421), we get a palindrome (5246666425).

The spelling of 1242244004 in words is "one billion, two hundred forty-two million, two hundred forty-four thousand, four".