12734540 has 48 divisors (see below), whose sum is σ = 32918592. Its totient is φ = 4029696.

The previous prime is 12734539. The next prime is 12734551. The reversal of 12734540 is 4543721.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 1679 + ... + 5318.

It is an arithmetic number, because the mean of its divisors is an integer number (685804).

Almost surely, 2^12734540 is an apocalyptic number.

12734540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12734540 is an abundant number, since it is smaller than the sum of its proper divisors (20184052).

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

12734540 is a wasteful number, since it uses less digits than its factorization.

12734540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7026 (or 7024 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 12734540 is about 3568.5487246218. The cubic root of 12734540 is about 233.5219744339.

The spelling of 12734540 in words is "twelve million, seven hundred thirty-four thousand, five hundred forty".