12038840 has 32 divisors (see below), whose sum is σ = 29550960. Its totient is φ = 4377600.

The previous prime is 12038827. The next prime is 12038861. The reversal of 12038840 is 4883021.

It is a super-3 number, since 3×12038840³ (a number of 22 digits) contains 333 as substring.

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, 13241 + ... + 14120.

Almost surely, 2^12038840 is an apocalyptic number.

12038840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12038840 is an abundant number, since it is smaller than the sum of its proper divisors (17512120).

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

12038840 is a wasteful number, since it uses less digits than its factorization.

12038840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27383 (or 27379 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 12038840 is about 3469.7031573321. The cubic root of 12038840 is about 229.1895863945.

The spelling of 12038840 in words is "twelve million, thirty-eight thousand, eight hundred forty".