12704540 has 48 divisors (see below), whose sum is σ = 28560000. Its totient is φ = 4732992.

The previous prime is 12704537. The next prime is 12704551. The reversal of 12704540 is 4540721.

12704540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12704540² = 322810673223200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25211 + ... + 25709.

It is an arithmetic number, because the mean of its divisors is an integer number (595000).

Almost surely, 2^12704540 is an apocalyptic number.

12704540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12704540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14280000).

12704540 is an abundant number, since it is smaller than the sum of its proper divisors (15855460).

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

12704540 is a wasteful number, since it uses less digits than its factorization.

12704540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 12704540 is about 3564.3428566848. The cubic root of 12704540 is about 233.3384534024.

The spelling of 12704540 in words is "twelve million, seven hundred four thousand, five hundred forty".