12030780 has 24 divisors (see below), whose sum is σ = 33686352. Its totient is φ = 3208192.

The previous prime is 12030779. The next prime is 12030787. The reversal of 12030780 is 8703021.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030787) 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, 100197 + ... + 100316.

It is an arithmetic number, because the mean of its divisors is an integer number (1403598).

Almost surely, 2^12030780 is an apocalyptic number.

12030780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12030780 is an abundant number, since it is smaller than the sum of its proper divisors (21655572).

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

12030780 is a wasteful number, since it uses less digits than its factorization.

12030780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200525 (or 200523 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 12030780 is about 3468.5414802190. The cubic root of 12030780 is about 229.1384275213.

The spelling of 12030780 in words is "twelve million, thirty thousand, seven hundred eighty".