12734390 has 16 divisors (see below), whose sum is σ = 22972032. Its totient is φ = 5082624.

The previous prime is 12734369. The next prime is 12734399. The reversal of 12734390 is 9343721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12734399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4667 + ... + 6873.

It is an arithmetic number, because the mean of its divisors is an integer number (1435752).

Almost surely, 2^12734390 is an apocalyptic number.

12734390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12734390 is a deficient number, since it is larger than the sum of its proper divisors (10237642).

12734390 is a wasteful number, since it uses less digits than its factorization.

12734390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2791.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 12734390 is about 3568.5277076128. The cubic root of 12734390 is about 233.5210575461.

The spelling of 12734390 in words is "twelve million, seven hundred thirty-four thousand, three hundred ninety".