1240812004 has 24 divisors (see below), whose sum is σ = 2279426688. Its totient is φ = 589871040.

The previous prime is 1240811959. The next prime is 1240812011. The reversal of 1240812004 is 4002180421.

It is a super-2 number, since 2×1240812004² = 3079228858540992032, which contains 22 as substring.

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, 25017 + ... + 55744.

It is an arithmetic number, because the mean of its divisors is an integer number (94976112).

Almost surely, 2^1240812004 is an apocalyptic number.

It is an amenable number.

1240812004 is a deficient number, since it is larger than the sum of its proper divisors (1038614684).

1240812004 is a wasteful number, since it uses less digits than its factorization.

1240812004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80955 (or 80953 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 1240812004 is about 35225.1615184374. The cubic root of 1240812004 is about 1074.5715268082.

Adding to 1240812004 its reverse (4002180421), we get a palindrome (5242992425).

The spelling of 1240812004 in words is "one billion, two hundred forty million, eight hundred twelve thousand, four".