12538330 has 16 divisors (see below), whose sum is σ = 25793280. Its totient is φ = 4298832.

The previous prime is 12538321. The next prime is 12538343. The reversal of 12538330 is 3383521.

It is a junction number, because it is equal to n+sod(n) for n = 12538295 and 12538304.

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, 89490 + ... + 89629.

It is an arithmetic number, because the mean of its divisors is an integer number (1612080).

Almost surely, 2^12538330 is an apocalyptic number.

12538330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12538330 is an abundant number, since it is smaller than the sum of its proper divisors (13254950).

12538330 is a wasteful number, since it uses less digits than its factorization.

12538330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179133.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 12538330 is about 3540.9504373826. The cubic root of 12538330 is about 232.3164157597.

The spelling of 12538330 in words is "twelve million, five hundred thirty-eight thousand, three hundred thirty".