12520770 has 32 divisors (see below), whose sum is σ = 30146688. Its totient is φ = 3328128.

The previous prime is 12520757. The next prime is 12520777. The reversal of 12520770 is 7702521.

12520770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12520770.

It is not an unprimeable number, because it can be changed into a prime (12520777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14182 + ... + 15038.

It is an arithmetic number, because the mean of its divisors is an integer number (942084).

Almost surely, 2^12520770 is an apocalyptic number.

12520770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12520770 is an abundant number, since it is smaller than the sum of its proper divisors (17625918).

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

12520770 is a wasteful number, since it uses less digits than its factorization.

12520770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354.

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 12520770 is about 3538.4700083511. The cubic root of 12520770 is about 232.2079116184.

The spelling of 12520770 in words is "twelve million, five hundred twenty thousand, seven hundred seventy".