12733400 has 24 divisors (see below), whose sum is σ = 29605620. Its totient is φ = 5093280.

The previous prime is 12733393. The next prime is 12733403. The reversal of 12733400 is 433721.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12733403) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 31634 + ... + 32033.

Almost surely, 2^12733400 is an apocalyptic number.

12733400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12733400 is an abundant number, since it is smaller than the sum of its proper divisors (16872220).

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

12733400 is a wasteful number, since it uses less digits than its factorization.

12733400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63683 (or 63674 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 12733400 is about 3568.3889922485. The cubic root of 12733400 is about 233.5150059059.

The spelling of 12733400 in words is "twelve million, seven hundred thirty-three thousand, four hundred".