1243504004 has 24 divisors (see below), whose sum is σ = 2226026880. Its totient is φ = 607539296.

The previous prime is 1243503983. The next prime is 1243504019. The reversal of 1243504004 is 4004053421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118874 + ... + 128910.

It is an arithmetic number, because the mean of its divisors is an integer number (92751120).

Almost surely, 2^1243504004 is an apocalyptic number.

It is an amenable number.

1243504004 is a deficient number, since it is larger than the sum of its proper divisors (982522876).

1243504004 is a wasteful number, since it uses less digits than its factorization.

1243504004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10747 (or 10745 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 1243504004 is about 35263.3521378782. The cubic root of 1243504004 is about 1075.3480766469.

Adding to 1243504004 its reverse (4004053421), we get a palindrome (5247557425).

The spelling of 1243504004 in words is "one billion, two hundred forty-three million, five hundred four thousand, four".