12149400 has 48 divisors (see below), whose sum is σ = 37665000. Its totient is φ = 3239680.

The previous prime is 12149393. The next prime is 12149411. The reversal of 12149400 is 494121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9525 + ... + 10724.

Almost surely, 2^12149400 is an apocalyptic number.

12149400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12149400 is an abundant number, since it is smaller than the sum of its proper divisors (25515600).

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

12149400 is a wasteful number, since it uses less digits than its factorization.

12149400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20268 (or 20259 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 12149400 is about 3485.5989442275. The cubic root of 12149400 is about 229.8890454117.

The spelling of 12149400 in words is "twelve million, one hundred forty-nine thousand, four hundred".