12402949052 has 24 divisors (see below), whose sum is σ = 23514773856. Its totient is φ = 5690155968.

The previous prime is 12402949037. The next prime is 12402949087. The reversal of 12402949052 is 25094920421.

It is a junction number, because it is equal to n+sod(n) for n = 12402948997 and 12402949015.

It is a congruent number.

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, 705443 + ... + 722810.

It is an arithmetic number, because the mean of its divisors is an integer number (979782244).

Almost surely, 2^12402949052 is an apocalyptic number.

It is an amenable number.

12402949052 is a deficient number, since it is larger than the sum of its proper divisors (11111824804).

12402949052 is a wasteful number, since it uses less digits than its factorization.

12402949052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428437 (or 1428435 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 12402949052 in words is "twelve billion, four hundred two million, nine hundred forty-nine thousand, fifty-two".