12855072 has 48 divisors (see below), whose sum is σ = 33929280. Its totient is φ = 4261632.

The previous prime is 12855061. The next prime is 12855103. The reversal of 12855072 is 27055821.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×12855072² = 330505752250368, which contains 22 as substring.

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, 34278 + ... + 34650.

It is an arithmetic number, because the mean of its divisors is an integer number (706860).

Almost surely, 2^12855072 is an apocalyptic number.

12855072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12855072 is an abundant number, since it is smaller than the sum of its proper divisors (21074208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12855072 is a wasteful number, since it uses less digits than its factorization.

12855072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 12855072 is about 3585.3970491425. The cubic root of 12855072 is about 234.2564213681.

The spelling of 12855072 in words is "twelve million, eight hundred fifty-five thousand, seventy-two".