12740780 has 24 divisors (see below), whose sum is σ = 28814352. Its totient is φ = 4704192.

The previous prime is 12740747. The next prime is 12740789. The reversal of 12740780 is 8704721.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12740789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24242 + ... + 24761.

It is an arithmetic number, because the mean of its divisors is an integer number (1200598).

Almost surely, 2^12740780 is an apocalyptic number.

12740780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12740780 is an abundant number, since it is smaller than the sum of its proper divisors (16073572).

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

12740780 is a wasteful number, since it uses less digits than its factorization.

12740780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49025 (or 49023 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 12740780 is about 3569.4229225464. The cubic root of 12740780 is about 233.5601105890.

The spelling of 12740780 in words is "twelve million, seven hundred forty thousand, seven hundred eighty".