1230396436 has 24 divisors (see below), whose sum is σ = 2164558760. Its totient is φ = 611960832.

The previous prime is 1230396373. The next prime is 1230396439. The reversal of 1230396436 is 6346930321.

It can be written as a sum of positive squares in 4 ways, for example, as 71402500 + 1158993936 = 8450^2 + 34044^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1230396395 and 1230396404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230396439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 825580 + ... + 827068.

Almost surely, 2^1230396436 is an apocalyptic number.

It is an amenable number.

1230396436 is a deficient number, since it is larger than the sum of its proper divisors (934162324).

1230396436 is a wasteful number, since it uses less digits than its factorization.

1230396436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443 (or 2441 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 37.

The square root of 1230396436 is about 35077.0072269571. The cubic root of 1230396436 is about 1071.5563678657.

The spelling of 1230396436 in words is "one billion, two hundred thirty million, three hundred ninety-six thousand, four hundred thirty-six".