12538732 has 6 divisors (see below), whose sum is σ = 21942788. Its totient is φ = 6269364.

The previous prime is 12538723. The next prime is 12538753. The reversal of 12538732 is 23783521.

It is a junction number, because it is equal to n+sod(n) for n = 12538694 and 12538703.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1567338 + ... + 1567345.

Almost surely, 2^12538732 is an apocalyptic number.

It is an amenable number.

12538732 is a deficient number, since it is larger than the sum of its proper divisors (9404056).

12538732 is a wasteful number, since it uses less digits than its factorization.

12538732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3134687 (or 3134685 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 12538732 is about 3541.0072013482. The cubic root of 12538732 is about 232.3188985518.

The spelling of 12538732 in words is "twelve million, five hundred thirty-eight thousand, seven hundred thirty-two".