1246728652 has 24 divisors (see below), whose sum is σ = 2363202576. Its totient is φ = 572083008.

The previous prime is 1246728617. The next prime is 1246728667. The reversal of 1246728652 is 2568276421.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1246728599 and 1246728608.

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, 60298 + ... + 78289.

It is an arithmetic number, because the mean of its divisors is an integer number (98466774).

Almost surely, 2^1246728652 is an apocalyptic number.

It is an amenable number.

1246728652 is a deficient number, since it is larger than the sum of its proper divisors (1116473924).

1246728652 is a wasteful number, since it uses less digits than its factorization.

1246728652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138777 (or 138775 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 1246728652 is about 35309.0449035371. The cubic root of 1246728652 is about 1076.2768032991.

The spelling of 1246728652 in words is "one billion, two hundred forty-six million, seven hundred twenty-eight thousand, six hundred fifty-two".