1243032404 has 6 divisors (see below), whose sum is σ = 2175306714. Its totient is φ = 621516200.

The previous prime is 1243032379. The next prime is 1243032449. The reversal of 1243032404 is 4042303421.

It can be written as a sum of positive squares in only one way, i.e., 1102372804 + 140659600 = 33202^2 + 11860^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1243032404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155379047 + ... + 155379054.

It is an arithmetic number, because the mean of its divisors is an integer number (362551119).

Almost surely, 2^1243032404 is an apocalyptic number.

It is an amenable number.

1243032404 is a deficient number, since it is larger than the sum of its proper divisors (932274310).

1243032404 is a wasteful number, since it uses less digits than its factorization.

1243032404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310758105 (or 310758103 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1243032404 is about 35256.6646749235. The cubic root of 1243032404 is about 1075.2121172196.

Adding to 1243032404 its reverse (4042303421), we get a palindrome (5285335825).

The spelling of 1243032404 in words is "one billion, two hundred forty-three million, thirty-two thousand, four hundred four".