1231842804 has 12 divisors (see below), whose sum is σ = 2874299904. Its totient is φ = 410614264.

The previous prime is 1231842779. The next prime is 1231842839. The reversal of 1231842804 is 4082481321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51326772 + ... + 51326795.

It is an arithmetic number, because the mean of its divisors is an integer number (239524992).

Almost surely, 2^1231842804 is an apocalyptic number.

It is an amenable number.

1231842804 is an abundant number, since it is smaller than the sum of its proper divisors (1642457100).

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

1231842804 is a wasteful number, since it uses less digits than its factorization.

1231842804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102653574 (or 102653572 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 1231842804 is about 35097.6182097874. The cubic root of 1231842804 is about 1071.9760856865.

The spelling of 1231842804 in words is "one billion, two hundred thirty-one million, eight hundred forty-two thousand, eight hundred four".